Benchmark Almanac

MedXpertQA

Muse Spark 52.6% leads since April 2026
o1 49.9% leads since January 2025
Muse Spark 52.6% leads since April 2026
Fading

Models answer 4,460 expert-level medical exam questions across 17 specialties, in a text subset and an image subset. Scoring is multiple-choice accuracy.

Released
January 2025
Kind
Medicine
Level
Expert
Scored
Checked automatically
Answers
Multiple choice
Tasks
All public
Strongest model tested
Muse Spark #53 on the capability index
Last in a launch post
June 2026, dropped before it saturated
Last model added
June 2026
Scores refreshed
November 12th, 2026

In the authors’ words

We introduce MedXpertQA, a highly challenging and comprehensive benchmark to evaluate expert-level medical knowledge and advanced reasoning. MedXpertQA includes 4,460 questions spanning 17 specialties and 11 body systems. It includes two subsets, Text for text evaluation and MM for multimodal evaluation. Notably, MM introduces expert-level exam questions with diverse images and rich clinical information, including patient records and examination results, setting it apart from traditional medical multimodal benchmarks with simple QA pairs generated from image captions. MedXpertQA applies rigorous filtering and augmentation to address the insufficient difficulty of existing benchmarks like MedQA, and incorporates specialty board questions to improve clinical relevance and comprehensiveness. We perform data synthesis to mitigate data leakage risk and conduct multiple rounds of expert reviews to ensure accuracy and reliability. We evaluate 18 leading models on \benchmark. Moreover, medicine is deeply connected to real-world decision-making, providing a rich and representative setting for assessing reasoning abilities beyond mathematics and code. To this end, we develop a reasoning-oriented subset to facilitate the assessment of o1-like models. Code and data are available at: https://github.com/TsinghuaC3I/MedXpertQA

Abstract of MedXpertQA: Benchmarking Expert-Level Medical Reasoning and Understanding (arXiv:2501.18362, CC0)
2
Models scored in lab cards
2
Launch posts list it, from 2 labs
1
System card reports it, from 1 lab

Muse Spark leads with 52.6%

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

o1 leads with 49.9% across all independent runs

Best score per model across the official leaderboard, Epoch AI’s own runs and any board Epoch AI copied. Each bar and row names its source.

Muse Spark leads with 52.6%, claims included

Best score per model from every source, including labs’ own numbers and claims Epoch AI collected from reports and papers. Labs pick their own settings, so a claim can beat an independent run of the same model.

  1. 1 Muse Spark 52.6%
  2. 2 MAI-Thinking-1 43%

Source: Labs’ model cards

#ModelScoreSettingDateSource
1 Muse Spark 52.6% Apr 2026 Lab model card
2 MAI-Thinking-1 43% Jun 2026 Lab model card
#ModelScoreSettingDateSource
1 o1 49.9% Dec 2024 Official leaderboard
2 Gemini 2.0 Flash Feb 2025 28% Feb 2025 Official leaderboard
3 QVQ-72B-Preview 27.1% Dec 2024 Official leaderboard
4 Qwen2.5-VL-72B 23.4% Jan 2025 Official leaderboard
#ModelScoreSettingDateSource
1 Muse Spark 52.6% Apr 2026 Lab model card
2 o1 49.9% Dec 2024 Official leaderboard
3 MAI-Thinking-1 43% Jun 2026 Lab model card
4 Gemini 2.0 Flash Feb 2025 28% Feb 2025 Official leaderboard
5 QVQ-72B-Preview 27.1% Dec 2024 Official leaderboard
6 Qwen2.5-VL-72B 23.4% Jan 2025 Official leaderboard

The benchmark's own leaderboard has 9 entries, 4 of them models we track. Switch the scores above to rank them together.

Number one over time Number one over time 2 models have held number one with claims included since its release in January 2025

Lab claims count from the day the card came out, independent runs from the model’s release. We draw one row each for the benchmark’s own leaderboard and what labs claim in their cards.

OpenAI Meta
Own leaderboard Not tested since Feb 2025
o1 49.9%
Lab claims Not tested since Jun 2026
Muse Spark 52.6%

Sources: Official MedXpertQA leaderboard and labs’ model cards

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) Muse Spark o1 0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) Muse Spark o1

Sources: Official MedXpertQA leaderboard and labs’ model cards

Labs headline it less often now, last in June 2026

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

Meta
Microsoft
DateLaunch postScoreAs the post writes it
Jun 2, 2026 MAI-Thinking-1 43 MedXpert QA
Apr 8, 2026 Muse Spark 52.6 MedXpertQA (Text)

One system card reports it

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
Jun 2, 2026 MAI-Thinking-1 technical report 43 MedXpert QA, text multiple choice (Table 12, rounded) Health

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