Datasets:

rgundam
/

MedIWF

Error code:   DatasetGenerationError
Exception:    CastError
Message:      Couldn't cast
job_id: string
model_id: string
model_label: string
family: string
provider_order: list<item: string>
  child 0, item: string
specialty: string
topic_index: int64
topic: string
condition: string
rep: int64
seed: int64
requested_at: string
prompt_text: string
ok: bool
content: string
finish_reason: string
generation_id: string
model_returned: string
provider: string
prompt_tokens: int64
completion_tokens: int64
cost_usd: double
latency_s: double
json_mode_used: bool
reasoning_tokens: int64
max_tokens_used: int64
seed_used: int64
reasoning_param_used: bool
parsed: struct<stem: string, options: string, answer: string, rationale: string, n_options: int64>
  child 0, stem: string
  child 1, options: string
  child 2, answer: string
  child 3, rationale: string
  child 4, n_options: int64
parse_error: string
tier: string
reasoning_mode: string
target_position: null
to
{'job_id': Value('string'), 'model_id': Value('string'), 'model_label': Value('string'), 'family': Value('string'), 'provider_order': List(Value('string')), 'specialty': Value('string'), 'topic_index': Value('int64'), 'topic': Value('string'), 'condition': Value('string'), 'rep': Value('int64'), 'seed': Value('int64'), 'requested_at': Value('string'), 'prompt_text': Value('string'), 'ok': Value('bool'), 'content': Value('string'), 'finish_reason': Value('string'), 'generation_id': Value('string'), 'model_returned': Value('string'), 'provider': Value('string'), 'prompt_tokens': Value('int64'), 'completion_tokens': Value('int64'), 'cost_usd': Value('float64'), 'latency_s': Value('float64'), 'json_mode_used': Value('bool'), 'reasoning_tokens': Value('int64'), 'max_tokens_used': Value('int64'), 'seed_used': Value('int64'), 'reasoning_param_used': Value('bool'), 'parsed': {'stem': Value('string'), 'options': Json(decode=True), 'answer': Value('string'), 'rationale': Value('string'), 'n_options': Value('int64')}, 'parse_error': Value('string')}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1827, in _prepare_split_single
                  for key, table in generator:
                                    ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 613, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              job_id: string
              model_id: string
              model_label: string
              family: string
              provider_order: list<item: string>
                child 0, item: string
              specialty: string
              topic_index: int64
              topic: string
              condition: string
              rep: int64
              seed: int64
              requested_at: string
              prompt_text: string
              ok: bool
              content: string
              finish_reason: string
              generation_id: string
              model_returned: string
              provider: string
              prompt_tokens: int64
              completion_tokens: int64
              cost_usd: double
              latency_s: double
              json_mode_used: bool
              reasoning_tokens: int64
              max_tokens_used: int64
              seed_used: int64
              reasoning_param_used: bool
              parsed: struct<stem: string, options: string, answer: string, rationale: string, n_options: int64>
                child 0, stem: string
                child 1, options: string
                child 2, answer: string
                child 3, rationale: string
                child 4, n_options: int64
              parse_error: string
              tier: string
              reasoning_mode: string
              target_position: null
              to
              {'job_id': Value('string'), 'model_id': Value('string'), 'model_label': Value('string'), 'family': Value('string'), 'provider_order': List(Value('string')), 'specialty': Value('string'), 'topic_index': Value('int64'), 'topic': Value('string'), 'condition': Value('string'), 'rep': Value('int64'), 'seed': Value('int64'), 'requested_at': Value('string'), 'prompt_text': Value('string'), 'ok': Value('bool'), 'content': Value('string'), 'finish_reason': Value('string'), 'generation_id': Value('string'), 'model_returned': Value('string'), 'provider': Value('string'), 'prompt_tokens': Value('int64'), 'completion_tokens': Value('int64'), 'cost_usd': Value('float64'), 'latency_s': Value('float64'), 'json_mode_used': Value('bool'), 'reasoning_tokens': Value('int64'), 'max_tokens_used': Value('int64'), 'seed_used': Value('int64'), 'reasoning_param_used': Value('bool'), 'parsed': {'stem': Value('string'), 'options': Json(decode=True), 'answer': Value('string'), 'rationale': Value('string'), 'n_options': Value('int64')}, 'parse_error': Value('string')}
              because column names don't match
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1694, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1880, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset

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job_id string	model_id string	model_label string	family string	provider_order list	specialty string	topic_index int64	topic string	condition string	rep int64	seed int64	requested_at string	prompt_text string	ok bool	content string	finish_reason string	generation_id string	model_returned string	provider string	prompt_tokens int64	completion_tokens int64	cost_usd float64	latency_s float64	json_mode_used bool	reasoning_tokens int64	max_tokens_used int64	seed_used int64	reasoning_param_used bool	parsed dict	parse_error string
64a4847a1d90	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	pharmacology	8	opioid conversion and dosing	guided	1	1,001	2026-09-14T03:32:46.784472Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pharmacology Topic: opioid conversion and dosing Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence...	true	{"stem":"A 62-year-old man with metastatic prostate cancer has severe pain despite taking oral morphine, 30 mg every 4 hours around the clock, for the past week. He has no confusion, respiratory depression, or renal dysfunction. His pain specialist plans to rotate him to oral oxycodone because of persistent nausea. Usi...	stop	gen-1789356763-WtxTUweV2GDCv4lHQzL2	openai/gpt-5.6-luna	OpenAI	416	215	0.000341	3.36	true	0	4,000	1,001	true	{ "stem": "A 62-year-old man with metastatic prostate cancer has severe pain despite taking oral morphine, 30 mg every 4 hours around the clock, for the past week. He has no confusion, respiratory depression, or renal dysfunction. His pain specialist plans to rotate him to oral oxycodone because of persistent nausea....	null
2bfef15f9fda	openai/gpt-5.6-terra	GPT-5.6 Terra	commercial	null	neurology	16	Alzheimer disease management	plain	0	1,000	2026-09-14T03:32:47.759959Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: neurology Topic: Alzheimer disease management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ra...	true	{"stem":"A 74-year-old woman is brought by her daughter for progressive memory problems over 2 years. She repeats questions, misplaces items, and recently needed help managing finances and medications. She has no visual hallucinations, fluctuating attention, parkinsonism, depression, or behavioral disturbances. Neurolo...	stop	gen-1789356763-gwo8VmAGpr9AsZKGcW8v	openai/gpt-5.6-terra	OpenAI	159	209	0.002826	4.33	true	0	4,000	1,000	true	{ "stem": "A 74-year-old woman is brought by her daughter for progressive memory problems over 2 years. She repeats questions, misplaces items, and recently needed help managing finances and medications. She has no visual hallucinations, fluctuating attention, parkinsonism, depression, or behavioral disturbances. Neu...	null
0b0723a5a012	anthropic/claude-sonnet-5	Claude Sonnet 5	commercial	null	obstetrics_gynecology	9	polycystic ovary syndrome diagnosis	guided	1	1,001	2026-09-14T03:32:48.560199Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: polycystic ovary syndrome diagnosis Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. ...	true	```json {"stem": "A 19-year-old woman presents with irregular menstrual cycles occurring every 45 to 90 days since menarche at age 13. She reports increased facial hair growth over the past 3 years that she treats with regular plucking and waxing. Her BMI is 29 kg/m2. Pelvic examination is unremarkable. Serum hCG is ne...	stop	gen-1789356763-gUlsl7BVAdFcn9v0vAc8	anthropic/claude-sonnet-5	Claude Platform on AWS	660	358	0.0049	5.13	true	0	4,000	1,001	true	{ "stem": "A 19-year-old woman presents with irregular menstrual cycles occurring every 45 to 90 days since menarche at age 13. She reports increased facial hair growth over the past 3 years that she treats with regular plucking and waxing. Her BMI is 29 kg/m2. Pelvic examination is unremarkable. Serum hCG is negativ...	null
e8e9e64a3e28	qwen/qwen3.6-27b	Qwen 3.6 27B	open	[ "SiliconFlow" ]	pediatrics	12	iron deficiency in toddlers	guided	0	1,000	2026-09-14T03:32:49.751140Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pediatrics Topic: iron deficiency in toddlers Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ra...	true	{ "stem": "A 15-month-old boy is brought to the office for a well-child examination. The parents report that he has been eating very little solid food and prefers drinking large amounts of whole milk throughout the day. He appears pale and fatigued. Physical examination shows conjunctival pallor and mild splenomegaly...	stop	gen-1789356763-WmM0r5bNkcNsrUxLiRal	qwen/qwen3.6-27b	SiliconFlow	441	250	0.000932	6.32	true	0	4,000	1,000	true	{ "stem": "A 15-month-old boy is brought to the office for a well-child examination. The parents report that he has been eating very little solid food and prefers drinking large amounts of whole milk throughout the day. He appears pale and fatigued. Physical examination shows conjunctival pallor and mild splenomegaly...	null
22d38f46e600	openai/gpt-5.6-terra	GPT-5.6 Terra	commercial	null	internal_medicine	17	vitamin B12 deficiency	guided	1	1,001	2026-09-14T03:32:49.764355Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: internal medicine Topic: vitamin B12 deficiency Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ...	true	{"stem":"A 68-year-old man has 6 months of progressive fatigue, numbness in both feet, and difficulty maintaining balance in the dark. He has type 2 diabetes treated with metformin for 8 years. Examination shows decreased vibration sensation in the lower extremities and a positive Romberg sign. Laboratory studies show ...	stop	gen-1789356766-3uhvhcE0jcYwSdNJpFfW	openai/gpt-5.6-terra	OpenAI	416	201	0.003244	2.98	true	0	4,000	1,001	true	{ "stem": "A 68-year-old man has 6 months of progressive fatigue, numbness in both feet, and difficulty maintaining balance in the dark. He has type 2 diabetes treated with metformin for 8 years. Examination shows decreased vibration sensation in the lower extremities and a positive Romberg sign. Laboratory studies s...	null
0d2301ed93de	anthropic/claude-sonnet-5	Claude Sonnet 5	commercial	null	pediatrics	16	acute otitis externa	plain	1	1,001	2026-09-14T03:32:49.859665Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pediatrics Topic: acute otitis externa Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence rationale...	true	{"stem": "A 9-year-old boy is brought to the pediatrician with a 2-day history of left ear pain and itching that worsened after he returned from a week at swim camp. He reports pain when chewing and his mother noticed he winces when she touches his ear. Temperature is 37.2°C (99°F). Examination shows tenderness with ma...	stop	gen-1789356763-LTMaCRlkbH8JxAfTzN1D	anthropic/claude-sonnet-5	Claude Platform on AWS	248	407	0.004566	6.43	true	0	4,000	1,001	true	{ "stem": "A 9-year-old boy is brought to the pediatrician with a 2-day history of left ear pain and itching that worsened after he returned from a week at swim camp. He reports pain when chewing and his mother noticed he winces when she touches his ear. Temperature is 37.2°C (99°F). Examination shows tenderness with...	null
24acbcec0edd	deepseek/deepseek-v4-flash	DeepSeek V4 Flash	open	[ "DeepInfra" ]	obstetrics_gynecology	14	endometriosis management	plain	0	1,000	2026-09-14T03:32:51.205482Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: endometriosis management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sen...	true	{"stem": "A 32-year-old woman with a history of dysmenorrhea and dyspareunia presents for evaluation of infertility after 18 months of trying to conceive. She has regular menstrual cycles. Transvaginal ultrasound shows a 4-cm right ovarian endometrioma. Her partner’s semen analysis is normal. What is the most appropria...	stop	gen-1789356763-aKhmbgGabjDZyRwSBugr	deepseek/deepseek-v4-flash	DeepInfra	159	202	0.000051	7.78	true	0	4,000	1,000	true	{ "stem": "A 32-year-old woman with a history of dysmenorrhea and dyspareunia presents for evaluation of infertility after 18 months of trying to conceive. She has regular menstrual cycles. Transvaginal ultrasound shows a 4-cm right ovarian endometrioma. Her partner’s semen analysis is normal. What is the most approp...	null
faf830f7e31c	meta-llama/llama-4-maverick	Llama 4 Maverick	open	[ "DeepInfra" ]	neurology	23	idiopathic intracranial hypertension	guided	0	1,000	2026-09-14T03:32:51.696512Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: neurology Topic: idiopathic intracranial hypertension Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sen...	true	{"stem": "A 25-year-old obese woman presents with a 2-week history of headache and transient visual obscuration. Her neurological examination is normal except for bilateral papilledema. What is the most appropriate next step in management?", "options": {"A": "Perform lumbar puncture with measurement of opening pressure...	stop	gen-1789356769-mS1xDk2uY9ydLC9ggkoP	meta-llama/llama-4-maverick	DeepInfra	422	151	0.000205	1.93	true	0	4,000	1,000	true	{ "stem": "A 25-year-old obese woman presents with a 2-week history of headache and transient visual obscuration. Her neurological examination is normal except for bilateral papilledema. What is the most appropriate next step in management?", "options": { "A": "Perform lumbar puncture with measurement of openin...	null
93ca427f23af	mistralai/mistral-small-2603	Mistral Small 2603	open	[ "Mistral" ]	pediatrics	24	precocious puberty evaluation	plain	0	1,000	2026-09-14T03:32:52.098897Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pediatrics Topic: precocious puberty evaluation Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ...	true	{ "stem": "A 7-year-old girl presents with breast development and pubic hair growth over the past 6 months. Her mother reports that she has also had a recent growth spurt. On examination, her height is at the 90th percentile, and she has Tanner stage III breast development and Tanner stage II pubic hair. Her bone age...	stop	gen-1789356769-KUP0COuNH8cNcp64nCBK	mistralai/mistral-small-2603	Mistral	164	264	0.000183	2.24	true	0	4,000	1,000	true	{ "stem": "A 7-year-old girl presents with breast development and pubic hair growth over the past 6 months. Her mother reports that she has also had a recent growth spurt. On examination, her height is at the 90th percentile, and she has Tanner stage III breast development and Tanner stage II pubic hair. Her bone age...	null
fda8c1a39cbd	anthropic/claude-sonnet-5	Claude Sonnet 5	commercial	null	pathology	23	wound healing phases	plain	1	1,001	2026-09-14T03:32:52.251067Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: wound healing phases Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence rationale ...	true	{"stem": "A 45-year-old man sustains a deep laceration to his forearm from a kitchen knife. The wound is cleaned, sutured, and heals without complication. On postoperative day 5, examination of the wound shows a pink, granulating base with new capillary loops and fibroblasts actively synthesizing type III collagen. Whi...	stop	gen-1789356767-9BdjCXfDE689BXxj3uAj	anthropic/claude-sonnet-5	Claude Platform on AWS	245	342	0.00391	4.49	true	0	4,000	1,001	true	{ "stem": "A 45-year-old man sustains a deep laceration to his forearm from a kitchen knife. The wound is cleaned, sutured, and heals without complication. On postoperative day 5, examination of the wound shows a pink, granulating base with new capillary loops and fibroblasts actively synthesizing type III collagen. ...	null
20cd8296036b	deepseek/deepseek-v4-flash	DeepSeek V4 Flash	open	[ "DeepInfra" ]	surgery	2	small bowel obstruction evaluation	guided	0	1,000	2026-09-14T03:32:53.527512Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: surgery Topic: small bowel obstruction evaluation Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentenc...	true	{"stem": "A 65-year-old man with a history of two prior abdominal surgeries presents with a 12-hour history of colicky abdominal pain, nausea, and vomiting. He has not passed flatus or stool for 8 hours. On examination, his heart rate is 100/min, blood pressure 110/70 mm Hg, and temperature 37.2°C. The abdomen is mildl...	stop	gen-1789356763-0DhhN9oArEgqjZYvoBD4	deepseek/deepseek-v4-flash	DeepInfra	413	289	0.000089	10.1	true	0	4,000	1,000	true	{ "stem": "A 65-year-old man with a history of two prior abdominal surgeries presents with a 12-hour history of colicky abdominal pain, nausea, and vomiting. He has not passed flatus or stool for 8 hours. On examination, his heart rate is 100/min, blood pressure 110/70 mm Hg, and temperature 37.2°C. The abdomen is mi...	null
027ce22596d6	meta-llama/llama-4-maverick	Llama 4 Maverick	open	[ "DeepInfra" ]	pathology	5	neoplasia hallmarks and tumor markers	plain	0	1,000	2026-09-14T03:32:53.950198Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: neoplasia hallmarks and tumor markers Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-se...	true	{"stem": "A 55-year-old man presents with a 2-month history of weight loss, fatigue, and a palpable abdominal mass. Laboratory tests reveal elevated serum levels of alpha-fetoprotein (AFP). Imaging studies show a large mass in the right lobe of the liver.", "options": {"A": "Hepatocellular carcinoma", "B": "Colorectal ...	stop	gen-1789356772-SRSxDSXy3Psn1tlee8Gr	meta-llama/llama-4-maverick	DeepInfra	166	149	0.000152	1.85	true	0	4,000	1,000	true	{ "stem": "A 55-year-old man presents with a 2-month history of weight loss, fatigue, and a palpable abdominal mass. Laboratory tests reveal elevated serum levels of alpha-fetoprotein (AFP). Imaging studies show a large mass in the right lobe of the liver.", "options": { "A": "Hepatocellular carcinoma", "B"...	null
4c15096673bd	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	pathology	2	cell injury and apoptosis	guided	0	1,000	2026-09-14T03:32:54.479712Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: cell injury and apoptosis Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ratio...	true	{"stem":"A 58-year-old man with an acute myocardial infarction develops worsening left ventricular dysfunction 2 days after successful restoration of coronary blood flow. Cardiac myocytes in the affected region show contraction bands, mitochondrial damage, and disruption of sarcolemmal membranes. Which mechanism most d...	stop	gen-1789356771-TRMJua4YJVjfWRKRoSs6	openai/gpt-5.6-luna	OpenAI	415	192	0.000313	2.78	true	0	4,000	1,000	true	{ "stem": "A 58-year-old man with an acute myocardial infarction develops worsening left ventricular dysfunction 2 days after successful restoration of coronary blood flow. Cardiac myocytes in the affected region show contraction bands, mitochondrial damage, and disruption of sarcolemmal membranes. Which mechanism mo...	null
87c8d55f306d	deepseek/deepseek-v4-flash	DeepSeek V4 Flash	open	[ "DeepInfra" ]	obstetrics_gynecology	7	Rh alloimmunization prevention	guided	1	1,001	2026-09-14T03:32:57.062740Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: Rh alloimmunization prevention Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A o...	true	{"stem": "A 28-year-old woman, gravida 2 para 1, at 28 weeks gestation presents for routine prenatal care. Her blood type is O, Rh-negative, and antibody screen is negative. She had an uncomplicated first pregnancy with an Rh-positive infant and received Rh immune globulin at 28 weeks and postpartum. Which of the follo...	stop	gen-1789356771-Jpo034Uhi9uMwpBKv8e4	deepseek/deepseek-v4-flash	DeepInfra	418	212	0.000076	5.86	true	0	4,000	1,001	true	{ "stem": "A 28-year-old woman, gravida 2 para 1, at 28 weeks gestation presents for routine prenatal care. Her blood type is O, Rh-negative, and antibody screen is negative. She had an uncomplicated first pregnancy with an Rh-positive infant and received Rh immune globulin at 28 weeks and postpartum. Which of the fo...	null
7dad803b19c7	google/gemini-3.8-flash	Gemini 3.8 Flash	commercial	null	neurology	4	cluster headache treatment	plain	1	1,001	2026-09-14T03:32:57.559003Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: neurology Topic: cluster headache treatment Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence rati...	true	{"stem": "A 36-year-old man presents to the emergency department with excruciating pain behind his right eye that began 20 minutes ago. He is pacing restlessly around the examination room and states that the pain is a 10/10 in severity. He reports experiencing similar severe, daily episodes over the past 2 weeks that f...	stop	gen-1789356769-EDQWk7WKPUFqG2bWI9fX	google/gemini-3.8-flash	Google	157	1,061	0.004097	7.7	true	827	4,000	1,001	false	{ "stem": "A 36-year-old man presents to the emergency department with excruciating pain behind his right eye that began 20 minutes ago. He is pacing restlessly around the examination room and states that the pain is a 10/10 in severity. He reports experiencing similar severe, daily episodes over the past 2 weeks tha...	null
5fc189184234	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	pathology	6	colorectal adenoma-carcinoma sequence	guided	1	1,001	2026-09-14T03:32:59.826742Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: colorectal adenoma-carcinoma sequence Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-se...	true	{"stem":"A 62-year-old man undergoes screening colonoscopy, which reveals a 1.5-cm tubular adenoma in the sigmoid colon. Histologic examination shows low-grade dysplasia. Genetic analysis demonstrates an activating mutation in the KRAS gene. Which additional molecular event most directly promotes progression of this le...	stop	gen-1789356777-dt2OFfA1TSpNeAXQbHvi	openai/gpt-5.6-luna	OpenAI	418	176	0.000295	2.76	true	0	4,000	1,001	true	{ "stem": "A 62-year-old man undergoes screening colonoscopy, which reveals a 1.5-cm tubular adenoma in the sigmoid colon. Histologic examination shows low-grade dysplasia. Genetic analysis demonstrates an activating mutation in the KRAS gene. Which additional molecular event most directly promotes progression of thi...	null
ed4157a3522d	qwen/qwen3.6-27b	Qwen 3.6 27B	open	[ "SiliconFlow" ]	obstetrics_gynecology	10	abnormal uterine bleeding evaluation	guided	1	1,001	2026-09-14T03:32:59.892381Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: abnormal uterine bleeding evaluation Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer....	true	{ "stem": "A 42-year-old G2P2 woman presents to the office due to heavy menstrual bleeding for the past 3 months. She reports soaking through one pad every hour for the first 4 days of her cycle. Her cycles are regular, occurring every 28 days. She has no history of abnormal Pap smears or sexually transmitted infection...	stop	gen-1789356763-J4o2YwFyR3Ouh0BqnHou	qwen/qwen3.6-27b	SiliconFlow	446	345	0.001238	16.47	true	0	4,000	1,001	true	{ "stem": "A 42-year-old G2P2 woman presents to the office due to heavy menstrual bleeding for the past 3 months. She reports soaking through one pad every hour for the first 4 days of her cycle. Her cycles are regular, occurring every 28 days. She has no history of abnormal Pap smears or sexually transmitted infecti...	null
85ce5a1bf2e8	qwen/qwen3.6-27b	Qwen 3.6 27B	open	[ "SiliconFlow" ]	pathology	15	leukemia classification	guided	1	1,001	2026-09-14T03:33:01.969150Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: leukemia classification Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence rationa...	true	{ "stem": "A 65-year-old man is evaluated for fatigue and easy bruising. Physical examination reveals pallor and petechiae on the lower extremities. Laboratory studies show a hemoglobin concentration of 8.2 g/dL, a leukocyte count of 25,000/mm³ with 40% circulating blasts, and a platelet count of 45,000/mm³. Bone marro...	stop	gen-1789356768-agz2T4TMql2Rd6X28TQg	qwen/qwen3.6-27b	SiliconFlow	438	277	0.001018	13.41	true	0	4,000	1,001	true	{ "stem": "A 65-year-old man is evaluated for fatigue and easy bruising. Physical examination reveals pallor and petechiae on the lower extremities. Laboratory studies show a hemoglobin concentration of 8.2 g/dL, a leukocyte count of 25,000/mm³ with 40% circulating blasts, and a platelet count of 45,000/mm³. Bone mar...	null
6605b601b810	qwen/qwen3.6-27b	Qwen 3.6 27B	open	[ "SiliconFlow" ]	psychiatry	24	attention-deficit hyperactivity disorder in adults	plain	1	1,001	2026-09-14T03:33:02.230810Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: attention-deficit hyperactivity disorder in adults Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answ...	true	{ "stem": "A 34-year-old software engineer comes to the clinic due to persistent difficulties with organization and time management that have negatively impacted his work performance. He reports that he frequently loses important work documents, misses deadlines despite setting multiple alarms, and feels restless dur...	stop	gen-1789356772-DQ6NYIMFPR4VK4Bz0gfC	qwen/qwen3.6-27b	SiliconFlow	177	286	0.000968	9.98	true	0	4,000	1,001	true	{ "stem": "A 34-year-old software engineer comes to the clinic due to persistent difficulties with organization and time management that have negatively impacted his work performance. He reports that he frequently loses important work documents, misses deadlines despite setting multiple alarms, and feels restless dur...	null
351fffd6c68e	mistralai/mistral-small-2603	Mistral Small 2603	open	[ "Mistral" ]	surgery	1	acute cholecystitis management	plain	1	1,001	2026-09-14T03:33:02.501348Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: surgery Topic: acute cholecystitis management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ra...	true	{ "stem": "A 58-year-old woman presents to the emergency department with a 2-day history of right upper quadrant abdominal pain, fever, and nausea. Vital signs include a temperature of 38.2°C, heart rate of 105 bpm, blood pressure of 130/80 mmHg, and respiratory rate of 18 breaths/min. Physical examination reveals te...	stop	gen-1789356779-yZqUjdmbVLd858t6mUER	mistralai/mistral-small-2603	Mistral	162	337	0.000227	2.61	true	0	4,000	1,001	true	{ "stem": "A 58-year-old woman presents to the emergency department with a 2-day history of right upper quadrant abdominal pain, fever, and nausea. Vital signs include a temperature of 38.2°C, heart rate of 105 bpm, blood pressure of 130/80 mmHg, and respiratory rate of 18 breaths/min. Physical examination reveals te...	null
6c9986237963	deepseek/deepseek-v4-flash	DeepSeek V4 Flash	open	[ "DeepInfra" ]	psychiatry	9	serotonin syndrome recognition	guided	1	1,001	2026-09-14T03:33:03.490777Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: serotonin syndrome recognition Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence...	true	{"stem": "A 35-year-old man with major depressive disorder is brought to the emergency department by his wife because of confusion, agitation, and muscle twitching for the past 6 hours. His medications include fluoxetine 40 mg daily and a new medication started 3 days ago. Vital signs: temperature 38.8°C (101.8°F), hea...	stop	gen-1789356773-SUtWq1GrlFpeUQnifKgh	deepseek/deepseek-v4-flash	DeepInfra	412	232	0.000079	9.54	true	0	4,000	1,001	true	{ "stem": "A 35-year-old man with major depressive disorder is brought to the emergency department by his wife because of confusion, agitation, and muscle twitching for the past 6 hours. His medications include fluoxetine 40 mg daily and a new medication started 3 days ago. Vital signs: temperature 38.8°C (101.8°F), ...	null
67cfd1c3c430	anthropic/claude-sonnet-5	Claude Sonnet 5	commercial	null	psychiatry	16	borderline personality disorder	guided	0	1,000	2026-09-14T03:33:04.959139Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: borderline personality disorder Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentenc...	true	```json {"stem": "A 24-year-old woman presents to the emergency department after cutting her forearm with a razor. She states that her boyfriend of two weeks threatened to leave her, and she felt she \"couldn't stand being alone.\" She describes a pattern of intense, unstable relationships in which partners are alterna...	stop	gen-1789356779-4L8NTZobNWKpN5gJLdgT	anthropic/claude-sonnet-5	Claude Platform on AWS	648	392	0.005216	5.13	true	0	4,000	1,000	true	{ "stem": "A 24-year-old woman presents to the emergency department after cutting her forearm with a razor. She states that her boyfriend of two weeks threatened to leave her, and she felt she \"couldn't stand being alone.\" She describes a pattern of intense, unstable relationships in which partners are alternately ...	null
06cf44b35cb2	deepseek/deepseek-v4-flash	DeepSeek V4 Flash	open	[ "DeepInfra" ]	obstetrics_gynecology	23	urinary incontinence types	plain	1	1,001	2026-09-14T03:33:05.099961Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: urinary incontinence types Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-s...	true	{"stem": "A 45-year-old woman presents with involuntary loss of urine during coughing, sneezing, and exercise. She reports no urinary urgency or nocturia, and her post-void residual volume is 30 mL. Urodynamic testing shows normal detrusor function with a Valsalva leak point pressure of 60 cm H2O. Which of the followin...	stop	gen-1789356777-w1ZD9foFDLE3x2oOwVEw	deepseek/deepseek-v4-flash	DeepInfra	159	192	0.000049	7.54	true	0	4,000	1,001	true	{ "stem": "A 45-year-old woman presents with involuntary loss of urine during coughing, sneezing, and exercise. She reports no urinary urgency or nocturia, and her post-void residual volume is 30 mL. Urodynamic testing shows normal detrusor function with a Valsalva leak point pressure of 60 cm H2O. Which of the follo...	null
0228eccb257e	google/gemini-3.8-flash	Gemini 3.8 Flash	commercial	null	obstetrics_gynecology	3	first-trimester bleeding evaluation	guided	0	1,000	2026-09-14T03:33:07.775511Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: first-trimester bleeding evaluation Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. ...	true	{"stem": "A 24-year-old woman, gravida 1 para 0, at 6 weeks gestation by last menstrual period presents with painless vaginal spotting for the past 24 hours. Her vital signs are temperature 37.0°C (98.6°F), pulse 72/min, blood pressure 118/74 mm Hg, and respirations 14/min. Pelvic examination reveals a closed cervical ...	stop	gen-1789356774-pt9IeHCe5u2zJU5mxDUu	google/gemini-3.8-flash	Google	432	1,901	0.007453	13.16	true	1,577	4,000	1,000	false	{ "stem": "A 24-year-old woman, gravida 1 para 0, at 6 weeks gestation by last menstrual period presents with painless vaginal spotting for the past 24 hours. Her vital signs are temperature 37.0°C (98.6°F), pulse 72/min, blood pressure 118/74 mm Hg, and respirations 14/min. Pelvic examination reveals a closed cervic...	null
c68b0446ae34	anthropic/claude-sonnet-5	Claude Sonnet 5	commercial	null	psychiatry	7	alcohol withdrawal management	plain	0	1,000	2026-09-14T03:33:07.776080Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: alcohol withdrawal management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ...	true	{"stem": "A 52-year-old man is brought to the emergency department by his family because of confusion and tremulousness. He drinks approximately 1 pint of vodka daily and had his last drink 36 hours ago. His temperature is 38.1°C (100.6°F), blood pressure is 168/98 mm Hg, pulse is 118/min, and respirations are 20/min. ...	stop	gen-1789356781-VCFFWyyymo4V6DKcPIjY	anthropic/claude-sonnet-5	Claude Platform on AWS	251	425	0.004752	5.81	true	0	4,000	1,000	true	{ "stem": "A 52-year-old man is brought to the emergency department by his family because of confusion and tremulousness. He drinks approximately 1 pint of vodka daily and had his last drink 36 hours ago. His temperature is 38.1°C (100.6°F), blood pressure is 168/98 mm Hg, pulse is 118/min, and respirations are 20/mi...	null
c5ad40631b89	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	pharmacology	5	ACE inhibitor adverse effects	plain	0	1,000	2026-09-14T03:33:07.826920Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pharmacology Topic: ACE inhibitor adverse effects Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentenc...	true	{"stem":"A 58-year-old man with hypertension, type 2 diabetes mellitus, and chronic kidney disease is started on lisinopril. Two weeks later, he develops swelling of his lips and tongue with difficulty breathing. His blood pressure is 148/86 mm Hg, and examination shows nonpitting edema of the face and tongue without u...	stop	gen-1789356785-lIaPjwaU7WEVWp05POgE	openai/gpt-5.6-luna	OpenAI	160	197	0.000268	2.73	true	0	4,000	1,000	true	{ "stem": "A 58-year-old man with hypertension, type 2 diabetes mellitus, and chronic kidney disease is started on lisinopril. Two weeks later, he develops swelling of his lips and tongue with difficulty breathing. His blood pressure is 148/86 mm Hg, and examination shows nonpitting edema of the face and tongue witho...	null
7366ca2fb608	anthropic/claude-sonnet-5	Claude Sonnet 5	commercial	null	psychiatry	24	attention-deficit hyperactivity disorder in adults	guided	1	1,001	2026-09-14T03:33:08.576256Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: attention-deficit hyperactivity disorder in adults Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answ...	true	```json {"stem": "A 27-year-old man comes to the physician because he has had difficulty maintaining employment for the past 5 years. He reports that he frequently misses deadlines, loses important documents, and struggles to sit through meetings without becoming restless. His girlfriend states that he interrupts conve...	stop	gen-1789356783-teiTlJ2tektQGKkY1z3g	anthropic/claude-sonnet-5	Claude Platform on AWS	658	403	0.005346	5.09	true	0	4,000	1,001	true	{ "stem": "A 27-year-old man comes to the physician because he has had difficulty maintaining employment for the past 5 years. He reports that he frequently misses deadlines, loses important documents, and struggles to sit through meetings without becoming restless. His girlfriend states that he interrupts conversati...	null
5ccdaae63c16	mistralai/mistral-small-2603	Mistral Small 2603	open	[ "Mistral" ]	psychiatry	24	attention-deficit hyperactivity disorder in adults	plain	1	1,001	2026-09-14T03:33:10.077900Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: attention-deficit hyperactivity disorder in adults Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answ...	true	{ "stem": "A 32-year-old man is brought to the clinic by his wife due to long-standing difficulties with focus, forgetfulness, and impulsivity that have affected his work performance and relationships. He reports that he has always struggled with staying organized and is often late for appointments. The patient denie...	stop	gen-1789356787-lpJ06Xl8K9DpMwaTdMwv	mistralai/mistral-small-2603	Mistral	164	264	0.00018	2.3	true	0	4,000	1,001	true	{ "stem": "A 32-year-old man is brought to the clinic by his wife due to long-standing difficulties with focus, forgetfulness, and impulsivity that have affected his work performance and relationships. He reports that he has always struggled with staying organized and is often late for appointments. The patient denie...	null
9d856cff87f4	meta-llama/llama-4-maverick	Llama 4 Maverick	open	[ "DeepInfra" ]	internal_medicine	20	gout acute management	plain	1	1,001	2026-09-14T03:33:10.926726Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: internal medicine Topic: gout acute management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence r...	true	{"stem": "A 55-year-old man presents to the emergency department with a 12-hour history of severe pain and swelling in his right big toe. He has a history of hypertension and hyperlipidemia, and has been taking hydrochlorothiazide and atorvastatin for the past 5 years. His temperature is 38.1°C (100.5°F), and his right...	stop	gen-1789356787-rixBOWovlTd4AH85d9Pp	meta-llama/llama-4-maverick	DeepInfra	163	278	0.000255	3.15	true	0	4,000	1,001	true	{ "stem": "A 55-year-old man presents to the emergency department with a 12-hour history of severe pain and swelling in his right big toe. He has a history of hypertension and hyperlipidemia, and has been taking hydrochlorothiazide and atorvastatin for the past 5 years. His temperature is 38.1°C (100.5°F), and his ri...	null
e98a448958fb	mistralai/mistral-small-2603	Mistral Small 2603	open	[ "Mistral" ]	pathology	2	cell injury and apoptosis	guided	1	1,001	2026-09-14T03:33:11.139841Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: cell injury and apoptosis Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ratio...	true	{ "stem": "A 58-year-old man presents with progressive fatigue and jaundice over 4 weeks. Laboratory studies reveal elevated bilirubin, alkaline phosphatase, and mild transaminitis. A liver biopsy shows hepatocyte apoptosis with formation of Councilman bodies. Which of the following mechanisms is most likely responsi...	stop	gen-1789356788-Z3LwbzYKd8ydXQXRsChD	mistralai/mistral-small-2603	Mistral	420	199	0.000182	2.56	true	0	4,000	1,001	true	{ "stem": "A 58-year-old man presents with progressive fatigue and jaundice over 4 weeks. Laboratory studies reveal elevated bilirubin, alkaline phosphatase, and mild transaminitis. A liver biopsy shows hepatocyte apoptosis with formation of Councilman bodies. Which of the following mechanisms is most likely responsi...	null
70484ca6a7f5	openai/gpt-5.6-terra	GPT-5.6 Terra	commercial	null	obstetrics_gynecology	4	postpartum hemorrhage management	plain	0	1,000	2026-09-14T03:33:11.880124Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: postpartum hemorrhage management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A...	true	{"stem":"A 29-year-old G2P2 woman has heavy vaginal bleeding 20 minutes after an uncomplicated spontaneous vaginal delivery of a 3,900-g infant. She received oxytocin after delivery of the placenta. Her blood pressure is 92/58 mm Hg, pulse is 118/min, and uterine fundus is enlarged and boggy. Bimanual uterine massage i...	stop	gen-1789356787-FFzL0u3fNOYn51RjPAzg	openai/gpt-5.6-terra	OpenAI	163	240	0.003206	4.05	true	0	4,000	1,000	true	{ "stem": "A 29-year-old G2P2 woman has heavy vaginal bleeding 20 minutes after an uncomplicated spontaneous vaginal delivery of a 3,900-g infant. She received oxytocin after delivery of the placenta. Her blood pressure is 92/58 mm Hg, pulse is 118/min, and uterine fundus is enlarged and boggy. Bimanual uterine massa...	null
dd6d296bb178	qwen/qwen3.6-27b	Qwen 3.6 27B	open	[ "SiliconFlow" ]	obstetrics_gynecology	5	preterm labor management	guided	0	1,000	2026-09-14T03:33:11.881276Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: preterm labor management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sen...	true	{ "stem": "A 28-year-old G1P0 woman at 32 weeks of gestation presents to the emergency department with regular uterine contractions every 5 minutes and 2 cm cervical dilation. Fetal heart tracing is category I. Chorioamnionitis and placental abruption have been ruled out. Which of the following is the most appropriat...	stop	gen-1789356782-Mwyzrf9GdTj6OJZtNV9W	qwen/qwen3.6-27b	SiliconFlow	444	253	0.000943	9.65	true	0	4,000	1,000	true	{ "stem": "A 28-year-old G1P0 woman at 32 weeks of gestation presents to the emergency department with regular uterine contractions every 5 minutes and 2 cm cervical dilation. Fetal heart tracing is category I. Chorioamnionitis and placental abruption have been ruled out. Which of the following is the most appropriat...	null
7930ea940cc4	google/gemini-3.8-flash	Gemini 3.8 Flash	commercial	null	pediatrics	3	neonatal jaundice evaluation	guided	0	1,000	2026-09-14T03:33:12.127035Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pediatrics Topic: neonatal jaundice evaluation Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence r...	true	{"stem": "A 3-week-old male infant is brought to the clinic for evaluation of persistent jaundice. His mother reports that his skin has become increasingly yellow over the past week and that his stools appear pale. He is exclusively breastfed, feeds vigorously every 2 to 3 hours, and has had appropriate weight gain. Ph...	stop	gen-1789356773-acf9vyyybo05kUEkWF6h	google/gemini-3.8-flash	Google	427	2,641	0.010224	18.57	true	2,404	4,000	1,000	false	{ "stem": "A 3-week-old male infant is brought to the clinic for evaluation of persistent jaundice. His mother reports that his skin has become increasingly yellow over the past week and that his stools appear pale. He is exclusively breastfed, feeds vigorously every 2 to 3 hours, and has had appropriate weight gain....	null
2627a51d2c87	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	pharmacology	23	teratogenic medications	plain	1	1,001	2026-09-14T03:33:12.402883Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pharmacology Topic: teratogenic medications Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence rati...	true	{"stem":"A 28-year-old woman with bipolar disorder treated with valproate becomes pregnant unexpectedly. At 10 weeks’ gestation, she asks about fetal risks and whether her medication should be changed. Which congenital abnormality is most strongly associated with first-trimester exposure to valproate?","options":{"A":"...	stop	gen-1789356790-OkUewrWIm5EnIs6KhArF	openai/gpt-5.6-luna	OpenAI	160	145	0.000206	2.32	true	0	4,000	1,001	true	{ "stem": "A 28-year-old woman with bipolar disorder treated with valproate becomes pregnant unexpectedly. At 10 weeks’ gestation, she asks about fetal risks and whether her medication should be changed. Which congenital abnormality is most strongly associated with first-trimester exposure to valproate?", "options"...	null
af7a811838c0	mistralai/mistral-small-2603	Mistral Small 2603	open	[ "Mistral" ]	pathology	7	breast carcinoma histologic subtypes	guided	0	1,000	2026-09-14T03:33:12.931735Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: breast carcinoma histologic subtypes Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sen...	true	{ "stem": "A 55-year-old woman presents with a painless, firm mass in the right breast that has been slowly enlarging over the past 6 months. Mammography reveals a 2.5 cm spiculated mass with microcalcifications. A core needle biopsy shows cells forming gland-like structures within a fibrous stroma, with low-grade nu...	stop	gen-1789356791-fQAIDW5uTqYkBNZH3vKG	mistralai/mistral-small-2603	Mistral	420	221	0.000196	1.79	true	0	4,000	1,000	true	{ "stem": "A 55-year-old woman presents with a painless, firm mass in the right breast that has been slowly enlarging over the past 6 months. Mammography reveals a 2.5 cm spiculated mass with microcalcifications. A core needle biopsy shows cells forming gland-like structures within a fibrous stroma, with low-grade nu...	null
129c0baeafe4	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	obstetrics_gynecology	23	urinary incontinence types	guided	1	1,001	2026-09-14T03:33:12.933300Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: obstetrics gynecology Topic: urinary incontinence types Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-s...	true	{"stem":"A 52-year-old woman reports leakage of urine when she coughs, sneezes, or lifts groceries. She has no urinary urgency, dysuria, nocturia, or leakage on the way to the bathroom. Pelvic examination shows mild anterior vaginal wall prolapse. Which type of urinary incontinence best explains her symptoms?","options...	stop	gen-1789356790-9csxecZO3Ls0XRmKjbr0	openai/gpt-5.6-luna	OpenAI	419	144	0.000257	2.01	true	0	4,000	1,001	true	{ "stem": "A 52-year-old woman reports leakage of urine when she coughs, sneezes, or lifts groceries. She has no urinary urgency, dysuria, nocturia, or leakage on the way to the bathroom. Pelvic examination shows mild anterior vaginal wall prolapse. Which type of urinary incontinence best explains her symptoms?", "...	null
afd609cc1898	google/gemini-3.8-flash	Gemini 3.8 Flash	commercial	null	psychiatry	12	anorexia nervosa management	plain	0	1,000	2026-09-14T03:33:13.114842Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: anorexia nervosa management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ra...	true	{"stem": "A 16-year-old girl is brought to the clinic by her parents due to progressive weight loss over the past 4 months. Her parents report that she exercises excessively, avoids carbohydrates, and frequently skips meals. The patient expresses an intense fear of gaining weight and reports that her last menstrual per...	stop	gen-1789356782-W1esugiIiY3g6NuKDsrc	google/gemini-3.8-flash	Google	158	1,327	0.005095	10.56	true	1,027	4,000	1,000	false	{ "stem": "A 16-year-old girl is brought to the clinic by her parents due to progressive weight loss over the past 4 months. Her parents report that she exercises excessively, avoids carbohydrates, and frequently skips meals. The patient expresses an intense fear of gaining weight and reports that her last menstrual ...	null
586750d39c02	mistralai/mistral-small-2603	Mistral Small 2603	open	[ "Mistral" ]	psychiatry	7	alcohol withdrawal management	guided	1	1,001	2026-09-14T03:33:14.365463Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: alcohol withdrawal management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ...	true	{ "stem": "A 45-year-old man is brought to the emergency department by his family after 48 hours of tremors, nausea, and profuse sweating. He has a history of heavy alcohol use and last consumed alcohol 36 hours ago. His temperature is 37.8°C (100.0°F), heart rate is 110/min, and blood pressure is 160/90 mmHg. He is ...	stop	gen-1789356792-6tHuU2ozdiuIpIytOyPo	mistralai/mistral-small-2603	Mistral	419	245	0.00021	2.24	true	0	4,000	1,001	true	{ "stem": "A 45-year-old man is brought to the emergency department by his family after 48 hours of tremors, nausea, and profuse sweating. He has a history of heavy alcohol use and last consumed alcohol 36 hours ago. His temperature is 37.8°C (100.0°F), heart rate is 110/min, and blood pressure is 160/90 mmHg. He is ...	null
13bbb5d50358	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	neurology	8	multiple sclerosis diagnosis	plain	0	1,000	2026-09-14T03:33:14.759990Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: neurology Topic: multiple sclerosis diagnosis Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ra...	true	{"stem":"A 29-year-old woman presents with 2 days of progressive blurry vision and pain in her right eye, especially with eye movement. She reports that 8 months ago, she had several weeks of numbness and weakness in both legs that resolved without treatment. Examination shows visual acuity of 20/200 in the right eye, ...	stop	gen-1789356791-dLczls9eaBV8z6Vz0kBf	openai/gpt-5.6-luna	OpenAI	159	241	0.000321	2.88	true	0	4,000	1,000	true	{ "stem": "A 29-year-old woman presents with 2 days of progressive blurry vision and pain in her right eye, especially with eye movement. She reports that 8 months ago, she had several weeks of numbness and weakness in both legs that resolved without treatment. Examination shows visual acuity of 20/200 in the right e...	null
53118572c4fe	meta-llama/llama-4-maverick	Llama 4 Maverick	open	[ "DeepInfra" ]	pediatrics	20	attention-deficit hyperactivity disorder management	plain	0	1,000	2026-09-14T03:33:15.246644Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pediatrics Topic: attention-deficit hyperactivity disorder management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct ans...	true	{"stem": "A 7-year-old boy is diagnosed with attention-deficit hyperactivity disorder (ADHD) predominantly inattentive type. His parents are concerned about the potential side effects of medication and ask about non-pharmacological interventions. The boy's teacher reports that he has difficulty completing assignments a...	stop	gen-1789356793-C1i3I1sFmfDr77v8S6ju	meta-llama/llama-4-maverick	DeepInfra	167	199	0.000193	2.13	true	0	4,000	1,000	true	{ "stem": "A 7-year-old boy is diagnosed with attention-deficit hyperactivity disorder (ADHD) predominantly inattentive type. His parents are concerned about the potential side effects of medication and ask about non-pharmacological interventions. The boy's teacher reports that he has difficulty completing assignment...	null
e5b472820571	meta-llama/llama-4-maverick	Llama 4 Maverick	open	[ "DeepInfra" ]	internal_medicine	6	hyperthyroidism and Graves disease	plain	1	1,001	2026-09-14T03:33:16.075101Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: internal medicine Topic: hyperthyroidism and Graves disease Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A o...	true	{"stem": "A 30-year-old woman presents to the clinic with a 2-month history of weight loss, palpitations, and heat intolerance. She has a diffusely enlarged thyroid gland and exophthalmos. Laboratory results show elevated free T4 and suppressed TSH. Which of the following is the most appropriate initial treatment?", "o...	stop	gen-1789356794-XaRXKULelvLoPc4Yz5Is	meta-llama/llama-4-maverick	DeepInfra	166	149	0.000152	1.71	true	0	4,000	1,001	true	{ "stem": "A 30-year-old woman presents to the clinic with a 2-month history of weight loss, palpitations, and heat intolerance. She has a diffusely enlarged thyroid gland and exophthalmos. Laboratory results show elevated free T4 and suppressed TSH. Which of the following is the most appropriate initial treatment?",...	null
e5e16004d845	openai/gpt-5.6-terra	GPT-5.6 Terra	commercial	null	psychiatry	4	panic disorder diagnosis	plain	1	1,001	2026-09-14T03:33:16.273615Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: panic disorder diagnosis Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ratio...	true	{"stem":"A 29-year-old woman presents for evaluation of recurrent episodes of sudden intense fear accompanied by palpitations, chest tightness, trembling, shortness of breath, and a feeling that she is \"going to die.\" The episodes peak within 10 minutes and occur unexpectedly, including while she is watching televisi...	stop	gen-1789356792-yHMem9gfUZL4TbawfKVY	openai/gpt-5.6-terra	OpenAI	159	220	0.002958	3.34	true	0	4,000	1,001	true	{ "stem": "A 29-year-old woman presents for evaluation of recurrent episodes of sudden intense fear accompanied by palpitations, chest tightness, trembling, shortness of breath, and a feeling that she is \"going to die.\" The episodes peak within 10 minutes and occur unexpectedly, including while she is watching tele...	null
2061f6927530	openai/gpt-5.6-terra	GPT-5.6 Terra	commercial	null	pediatrics	4	developmental milestones assessment	guided	0	1,000	2026-09-14T03:33:16.597897Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pediatrics Topic: developmental milestones assessment Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sen...	true	{"stem":"A 9-month-old boy is brought for a well-child visit. He sits without support, transfers objects between hands, responds to his name, and babbles repetitive syllables. His parents ask which additional skill is expected at this age. Which developmental skill should this child be able to demonstrate?","options":{...	stop	gen-1789356793-a8HafYKnSNEniLPDnUrs	openai/gpt-5.6-terra	OpenAI	415	141	0.002522	3.66	true	0	4,000	1,000	true	{ "stem": "A 9-month-old boy is brought for a well-child visit. He sits without support, transfers objects between hands, responds to his name, and babbles repetitive syllables. His parents ask which additional skill is expected at this age. Which developmental skill should this child be able to demonstrate?", "opt...	null
78ca57d3fefd	anthropic/claude-sonnet-5	Claude Sonnet 5	commercial	null	psychiatry	18	somatic symptom disorder	guided	0	1,000	2026-09-14T03:33:17.796161Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: psychiatry Topic: somatic symptom disorder Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ratio...	true	```json {"stem": "A 42-year-old woman comes to the physician because of persistent abdominal pain and bloating for the past 8 months. She has seen three gastroenterologists, undergone two upper endoscopies, a colonoscopy, and an abdominal CT scan, all of which were unremarkable. Despite reassurance, she remains convinc...	stop	gen-1789356792-Ax2UhPoDdR642MxEw2tP	anthropic/claude-sonnet-5	Claude Platform on AWS	649	428	0.005578	5.39	true	0	4,000	1,000	true	{ "stem": "A 42-year-old woman comes to the physician because of persistent abdominal pain and bloating for the past 8 months. She has seen three gastroenterologists, undergone two upper endoscopies, a colonoscopy, and an abdominal CT scan, all of which were unremarkable. Despite reassurance, she remains convinced th...	null
0ccf4ab21f0c	mistralai/mistral-small-2603	Mistral Small 2603	open	[ "Mistral" ]	surgery	20	surgical site infection prevention	guided	0	1,000	2026-09-14T03:33:18.368322Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: surgery Topic: surgical site infection prevention Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentenc...	true	{ "stem": "A 68-year-old man undergoes an elective right hemicolectomy for colon cancer. On postoperative day 3, his surgical site appears clean and dry without signs of infection. Which of the following is the most appropriate next step in the prevention of surgical site infection?", "options": { "A": "Remove ...	stop	gen-1789356796-lQkssw7PD75Gd6bKowQ4	mistralai/mistral-small-2603	Mistral	420	203	0.000185	1.77	true	0	4,000	1,000	true	{ "stem": "A 68-year-old man undergoes an elective right hemicolectomy for colon cancer. On postoperative day 3, his surgical site appears clean and dry without signs of infection. Which of the following is the most appropriate next step in the prevention of surgical site infection?", "options": { "A": "Remove ...	null
f1c520f710b2	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	pathology	4	hypersensitivity reaction types	plain	1	1,001	2026-09-14T03:33:18.691245Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: pathology Topic: hypersensitivity reaction types Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence...	true	{"stem":"A 24-year-old woman develops wheezing, generalized urticaria, facial swelling, and hypotension within minutes of receiving intravenous penicillin for bacterial endocarditis. Which immunologic mechanism most directly explains this reaction?","options":{"A":"IgE-mediated activation of mast cells with release of ...	stop	gen-1789356796-ZWocN6Y0RYjUeFShk1CU	openai/gpt-5.6-luna	OpenAI	159	181	0.000249	2.62	true	0	4,000	1,001	true	{ "stem": "A 24-year-old woman develops wheezing, generalized urticaria, facial swelling, and hypotension within minutes of receiving intravenous penicillin for bacterial endocarditis. Which immunologic mechanism most directly explains this reaction?", "options": { "A": "IgE-mediated activation of mast cells wi...	null
d7724fbba131	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	surgery	13	hemorrhagic shock resuscitation	plain	0	1,000	2026-09-14T03:33:18.973508Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: surgery Topic: hemorrhagic shock resuscitation Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence r...	true	{"stem":"A 27-year-old man is brought to the emergency department 30 minutes after a high-speed motor vehicle collision. He is pale, confused, and diaphoretic. Temperature is 35.8°C (96.4°F), pulse is 138/min, respirations are 30/min, blood pressure is 78/46 mm Hg, and oxygen saturation is 96% on high-flow oxygen. Exam...	stop	gen-1789356794-3vehS4UZrbTwqFmauIEl	openai/gpt-5.6-luna	OpenAI	162	338	0.000438	4.21	true	0	4,000	1,000	true	{ "stem": "A 27-year-old man is brought to the emergency department 30 minutes after a high-speed motor vehicle collision. He is pale, confused, and diaphoretic. Temperature is 35.8°C (96.4°F), pulse is 138/min, respirations are 30/min, blood pressure is 78/46 mm Hg, and oxygen saturation is 96% on high-flow oxygen. ...	null
6e3b317a3af1	openai/gpt-5.6-luna	GPT-5.6 Luna	commercial	null	neurology	16	Alzheimer disease management	guided	1	1,001	2026-09-14T03:33:19.377237Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: neurology Topic: Alzheimer disease management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answer. - A one-sentence ra...	true	{"stem":"A 72-year-old woman is brought by her daughter for a 2-year history of progressive difficulty managing finances, preparing meals, and recalling recent conversations. She has no focal neurologic deficits, depression, or gait abnormalities. MRI of the brain shows generalized cortical atrophy without focal lesion...	stop	gen-1789356796-c3xPa2z7YBsypsAX9dZN	openai/gpt-5.6-luna	OpenAI	415	172	0.000289	3.1	true	0	4,000	1,001	true	{ "stem": "A 72-year-old woman is brought by her daughter for a 2-year history of progressive difficulty managing finances, preparing meals, and recalling recent conversations. She has no focal neurologic deficits, depression, or gait abnormalities. MRI of the brain shows generalized cortical atrophy without focal le...	null
74c6d2e64909	qwen/qwen3.6-27b	Qwen 3.6 27B	open	[ "SiliconFlow" ]	internal_medicine	1	acute coronary syndrome initial management	plain	1	1,001	2026-09-14T03:33:20.625274Z	Write one single-best-answer multiple-choice question in the style of the USMLE Step 2 CK examination. Specialty: internal medicine Topic: acute coronary syndrome initial management Requirements: - A clinical vignette stem describing a patient. - Exactly five answer options labeled A to E. - Exactly one correct answe...	true	{ "stem": "A 64-year-old man presents to the emergency department with crushing substernal chest pain that began 30 minutes ago while watching television. The pain radiates to his left arm and is associated with diaphoresis and nausea. His medical history includes hypertension and hyperlipidemia. Vital signs show a b...	stop	gen-1789356791-ZCzZRFngfAYqm6FHlUK7	qwen/qwen3.6-27b	SiliconFlow	174	333	0.001118	8.74	true	0	4,000	1,001	true	{ "stem": "A 64-year-old man presents to the emergency department with crushing substernal chest pain that began 30 minutes ago while watching television. The pain radiates to his left arm and is associated with diaphoresis and nausea. His medical history includes hypertension and hyperlipidemia. Vital signs show a b...	null

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MedIWF: item-writing flaws and answer-position bias in LLM-generated medical multiple-choice questions

28,280 medical single-best-answer multiple-choice questions generated in September 2026 by 15 large language models (8 base-tier, 7 flagship) across 8 specialties and 200 topics, with the prompts, the generation metadata (model, provider, seed, cost, reasoning tokens) and structural item-writing-flaw labels from a rule-based detector (14 rules, version 1.2). The main corpus is 12,000 items (two prompts x two repetitions); five experimental arms add 15,800 items; a 480-item stability re-run made eight days later is included.

The corpus is part of MedIWF, a study of item-writing flaws and answer-position bias in LLM-generated medical multiple-choice questions. The detector, the analysis code, the physician content ratings, the hand-check labels, the protocol and all outputs are in the GitHub repository https://github.com/rgundam-stevens/MedIWF, archived at https://doi.org/10.5281/zenodo.22903818.

Files

File	Items analysed	Contents
`data/generated/items_full.jsonl.gz`	12,000	main corpus: 15 models x 200 topics x 2 prompts (plain, guided) x 2 repetitions
`data/generated/items_full_reasoning.jsonl.gz`	3,200	reasoning arm: 4 models with hidden reasoning switched on, same grid (200 topics x 2 prompts x 2 repetitions)
`data/generated/items_position.jsonl.gz`	3,000	position arm: guided prompt with a requested key position
`data/generated/items_template.jsonl.gz`	6,600	template-control arm: neutral plain and guided templates (3,000 each) and a rotated plain template (600)
`data/generated/items_wording.jsonl.gz`	3,000	paraphrase arm: guided prompt with paraphrased guidelines
`data/generated/items_stability.jsonl.gz`	480	stability re-run of a 480-item subset, eight days after the main corpus
`data/generated/items_pilot*.jsonl.gz`	not analysed	pilots
`data/generated/judgeR_.jsonl.gz`, `judge_.jsonl.gz`		LLM-judge verdicts on the BenchMarker validation items and on the 100 physician-rated items
`outputs/flags_<run>.csv`		detector output, one row per analysed item: one column per flaw check, `n_flaws`, the key, option-length statistics and the detector version

Each line of an items_*.jsonl.gz file is one generation attempt. The main fields are job_id, model_id, model_label, family, tier, specialty, topic_index, topic, condition, rep, seed, reasoning_mode, target_position, temperature, requested_at, prompt_text, ok, content (the raw model output), finish_reason, generation_id, model_returned, provider, prompt_tokens, completion_tokens, reasoning_tokens, cost_usd, latency_s, parsed (stem, options keyed A to E, answer, rationale, n_options) and parse_error. The analysed attempt of each job is the first whose raw output passes the current validator (scripts/detect.py); parsed is the parse made at generation time and is null for an attempt that could not be parsed then, including 18 main-corpus attempts that were re-parsed later and analysed; outputs/flags_<run>.csv lists the analysed job ids. The field set differs slightly between runs because the generation script gained fields over the study. Decompress with gunzip or read the files with gzip in Python.

Intended use

Research on item quality, prompt effects, answer-position bias and detector validation. The items are not clinically validated and are not intended for use in examinations or teaching without expert review: two physicians found a content defect in about one item in eight of a 100-item sample (outputs/content_rating/ in the repository).

Provenance and license

Generated through the OpenRouter gateway under the prompts in the repository's config/prompts/. The item text is released as generated, and each model's terms of use may apply to its output; the labels, the metadata and the compilation are released under CC BY 4.0 (see LICENSE-DATA.md). No human subjects data are included. The NBME items used in the study for the psychometric comparison are covered by a data-use agreement and are not part of this dataset.

Known limitations

The corpus is a snapshot of the model versions and hosts recorded in the metadata; 2.7% of repetition pairs are near-identical; the detector's rules are surface-form rules, with the validation reported in the repository's outputs.

Citation

Gundam R. MedIWF: item-writing flaws and answer-position bias in large language model-generated medical multiple-choice questions (corpus, detector and code). Zenodo; 2026. https://doi.org/10.5281/zenodo.22903818

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