Benchmark Almanac

micro1 Medical Index

GPT-6 Astra 71% leads since October 2026
Not in model cards

Models are scored on the equal-weight average of micro1 medical benchmarks, currently RealmPathology, PharmaBench and WellnessBench.

A live scoreboard that adds each new micro1 medical benchmark.

Made by
micro1
Released
October 2026
Kind
Medicine
Level
Expert
Scored
Graded by a model
Answers
Open-ended
Strongest model tested
GPT-6 Astra #3 on the capability index
Last model added
October 2026
Scores refreshed
November 12th, 2026
8
Models scored on its own leaderboard

GPT-6 Astra leads with 71%

Best score per model from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best.

  1. 71.0 GPT-6 Astra
  2. 70.8 Muse Wonder
  3. 70.0 Claude Sonnet 5.5
  4. 68.4 Claude Opus 5.5
  5. 68.2 Claude Fable 5.1
  6. 65.2 Gemini 4 Argon
  7. 64.1 Grok 4.6
  8. 60.0 Gemini 3.8 Flash
  1. 1 GPT-6 Astra 71%
  2. 2 Muse Wonder 70.8%
  3. 3 Claude Sonnet 5.5 70%
  4. 4 Claude Opus 5.5 68.4%
  5. 5 Claude Fable 5.1 68.2%
  6. 6 Gemini 4 Argon 65.2%
  7. 7 Grok 4.6 64.1%
  8. 8 Gemini 3.8 Flash 60%

Source: Official micro1 Medical Index leaderboard

#ModelScoreSettingDateSource
1 GPT-6 Astra 71% Sep 2026 Official leaderboard
2 Muse Wonder 70.8% Oct 2026 Official leaderboard
3 Claude Sonnet 5.5 70% Sep 2026 Official leaderboard
4 Claude Opus 5.5 68.4% Sep 2026 Official leaderboard
5 Claude Fable 5.1 68.2% Sep 2026 Official leaderboard
6 Gemini 4 Argon 65.2% Sep 2026 Official leaderboard
7 Grok 4.6 64.1% Aug 2026 Official leaderboard
8 Gemini 3.8 Flash 60% Sep 2026 Official leaderboard

Number one over time

Lab claims count from the day the card came out, independent runs from the model’s release.

OpenAI
Own leaderboard 1 leader
GPT-6 Astra 71%

Source: Official micro1 Medical Index leaderboard

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 Best so far
0% 20% 40% 60% 80% 100% Near the ceiling (85%) GPT-6 Astra Grok 4.6 0% 20% 40% 60% 80% 100% Near the ceiling (85%) GPT-6 Astra Grok 4.6

Source: Official micro1 Medical Index leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

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