MedCode
Models read de-identified patient records and output primary and secondary ICD-10-CM diagnosis codes. Answers are checked against codes assigned by professional coders.
Records include discharge summaries with progress and consult notes. Coders used the Codify lookup tool but no AI. 107 models on 2026-10-29, led by Claude Opus 5 at 63.57%.
- Level
- Expert Specialists with years of training, often over hours of work
- Scored
- Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
- Answers
- Short answer A number, word or short string matched to a key.
Claude Opus 5 leads with 63.6%
Best score per model from the benchmark's own leaderboard, read on 2 Nov 2026. Where a model ran with several settings or harnesses, we keep its best. Every run is in the next chart.
- 63.6 Claude Opus 5
- 59.1
Gemini 3.1 Pro
- 58.8
Gemini 4 Argon
- 56.1 Claude Fable 5
- 55.9
Gemini 3 Flash
- 55.8
Gemini 3.5 Flash
- 54.9 Claude Opus 4.7
- 53.5 Claude Fable 5.1
- 53.4
Gemini 3.7 Flash
- 53.2 Claude Opus 4.8
- 53.1
Gemini 3.6 Flash
- 52.9 Claude Sonnet 5.5
- 52.7 GPT-5.1
- 52.2
Gemini 3 Pro
- 51.5 Claude Haiku 5.5
- 51.3
Muse Spark
- 50.6
Gemini 2.5 Pro
- 49.9
Muse Wonder Full
- 49.8 Claude Opus 5.5
- 49.8 GPT-5.2
- 49.6 GPT-5
- 49.5 Grok 4.7
- 49.4 Kimi K3
- 49.4
Muse Spark 1.2
- 49.2 Claude Opus 4.5
- 49.1 Claude Opus 4.6
- 49.1 GPT-5.5
- 48.8 GPT-6.1 Sol
- 48.5 GPT-6 Astra
- 48.1
Gemini 3.8 Flash
- 47.6
Gemini 3.1 Flash-Lite
- 47.5 Claude Sonnet 5
- 47.3 o3
- 47.2 Claude Opus 4.1
- 47.1 GPT-6 Sol
- 46.3
MiniMax-M3
- 45.0 MiMo-V2.6 Pro
- 44.7 Grok 4.6
- 44.7 GPT-6 Luna
- 44.1 Claude Sonnet 4.5
- 44.0 GPT-5.6 Sol
- 43.5
Gemini 3.5 Flash-Lite
- 43.4 GPT-5.6 Terra
- 43.3 Grok 4.5
- 43.3
Tencent Hy4 preview
- 43.0 GPT-5 mini
- 42.9 GLM-5.3
- 42.5
DeepSeek V4 Pro 0813
- 42.4 GPT-5.6 Luna
- 41.6 GLM-5.1
- 41.4
DeepSeek V4 Flash 0731
- 41.3 GPT-5.4
- 41.2
Inkling
- 41.2
DeepSeek V4.1 Flash
- 41.1 MiMo-V2.6 Flash
- 41.0 GPT-5.4 Nano
- 40.8 GLM-5.2
- 40.7
Mistral Large 4
- 40.7
Qwen 3.8 Max
- 40.5
Gemini 2.5 Flash
- 40.5
DeepSeek-V4-Pro
- 40.4
Gemini 2.5 Flash
- 40.1 Kimi K2.6
- 39.3 Kimi K2.5
- 38.8
Qwen3.7-Max
- 38.6
Nemotron 3 Ultra
- 38.1 Grok 4
- 38.1 Grok 4.3
- 37.9
Inkling-Small
- 37.4 Grok 4 Fast
- 36.9
Qwen 3.6 Plus
- 36.5
Llama 4 Maverick
- 35.0 Claude Sonnet 4
- 34.4
MiniMax-M2.7
- 34.2
Gemini 2.5 Flash-Lite
- 34.1
MiniMax-M2.1
- 33.8 o4-mini
- 33.8
Mistral Medium 3.5
- 33.0
Qwen 3.5 Flash (hosted 35B-A3B)
- 32.8 GLM-4.7
- 32.7 Claude Haiku 4.5
- 32.5 MiMo-V2.5-Pro
- 32.3
Ling-3.0-flash
- 32.2 Grok 4.20
- 31.9 MiMo-V2.5
- 31.6
Qwen3-VL-Plus
- 31.4
Qwen3-Max
- 31.3 Mercury 2.5
- 30.4 GPT-5 nano
- 29.3
Ling-3.0-flash-Fin
- 28.7
Qwen 3.8 27B
- 28.4 Grok 4.1 Fast
- 23.3
Llama 4 Scout
- 23.1
Laguna M.1
- 21.3
Laguna XS.2
- 19.7
Command A+
- 1 Claude Opus 5 63.6%
- 2
Gemini 3.1 Pro 59.1%
- 3
Gemini 4 Argon 58.8%
- 4 Claude Fable 5 56.1%
- 5
Gemini 3 Flash 55.9%
- 6
Gemini 3.5 Flash 55.8%
- 7 Claude Opus 4.7 54.9%
- 8 Claude Fable 5.1 53.5%
- 9
Gemini 3.7 Flash 53.4%
- 10 Claude Opus 4.8 53.2%
- 11
Gemini 3.6 Flash 53.1%
- 12 Claude Sonnet 5.5 52.9%
- 13 GPT-5.1 52.7%
- 14
Gemini 3 Pro 52.2%
- 15 Claude Haiku 5.5 51.5%
- 16
Muse Spark 51.3%
- 17
Gemini 2.5 Pro Jun 2025 50.6%
- 18
Muse Wonder Full 49.9%
- 19 Claude Opus 5.5 49.8%
- 20 GPT-5.2 49.8%
- 21 GPT-5 49.6%
- 22 Grok 4.7 49.5%
- 23 Kimi K3 49.4%
- 24
Muse Spark 1.2 49.4%
- 25 Claude Opus 4.5 thinking 49.2%
- 26 Claude Opus 4.6 thinking 49.1%
- 27 GPT-5.5 49.1%
- 28 GPT-6.1 Sol 48.8%
- 29 GPT-6 Astra 48.5%
- 30
Gemini 3.8 Flash 48.1%
- 31
Gemini 3.1 Flash-Lite 47.6%
- 32 Claude Sonnet 5 47.5%
- 33 o3 47.3%
- 34 Claude Opus 4.1 thinking 47.2%
- 35 GPT-6 Sol 47.1%
- 36
MiniMax-M3 46.3%
- 37 MiMo-V2.6 Pro 45%
- 38 Grok 4.6 44.7%
- 39 GPT-6 Luna 44.7%
- 40 Claude Sonnet 4.5 thinking 44.1%
- 41 GPT-5.6 Sol 44%
- 42
Gemini 3.5 Flash-Lite 43.5%
- 43 GPT-5.6 Terra 43.4%
- 44 Grok 4.5 43.3%
- 45
Tencent Hy4 preview 43.3%
- 46 GPT-5 mini 43%
- 47 GLM-5.3 42.9%
- 48
DeepSeek V4 Pro 0813 42.5%
- 49 GPT-5.6 Luna 42.4%
- 50 GLM-5.1 41.6%
- 51
DeepSeek V4 Flash 0731 41.4%
- 52 GPT-5.4 xhigh 41.3%
- 53
Inkling 41.2%
- 54
DeepSeek V4.1 Flash 41.2%
- 55 MiMo-V2.6 Flash 41.1%
- 56 GPT-5.4 Nano 41%
- 57 GLM-5.2 40.8%
- 58
Mistral Large 4 40.7%
- 59
Qwen 3.8 Max 40.7%
- 60
Gemini 2.5 Flash Sep 2025, non-thinking 40.5%
- 61
DeepSeek-V4-Pro 40.5%
- 62
Gemini 2.5 Flash Jun 2025, thinking 40.4%
- 63 Kimi K2.6 40.1%
- 64 Kimi K2.5 thinking 39.3%
- 65
Qwen3.7-Max 38.8%
- 66
Nemotron 3 Ultra 38.6%
- 67 Grok 4 38.1%
- 68 Grok 4.3 38.1%
- 69
Inkling-Small 37.9%
- 70 Grok 4 Fast reasoning 37.4%
- 71
Qwen 3.6 Plus 36.9%
- 72
Llama 4 Maverick 36.5%
- 73 Claude Sonnet 4 thinking 35%
- 74
MiniMax-M2.7 34.4%
- 75
Gemini 2.5 Flash-Lite Sep 2025, thinking 34.2%
- 76
MiniMax-M2.1 34.1%
- 77 o4-mini 33.8%
- 78
Mistral Medium 3.5 33.8%
- 79
Qwen 3.5 Flash (hosted 35B-A3B) 33%
- 80 GLM-4.7 32.8%
- 81 Claude Haiku 4.5 thinking 32.7%
- 82 MiMo-V2.5-Pro 32.5%
- 83
Ling-3.0-flash 32.3%
- 84 Grok 4.20 reasoning 32.2%
- 85 MiMo-V2.5 31.9%
- 86
Qwen3-VL-Plus 31.6%
- 87
Qwen3-Max 31.4%
- 88 Mercury 2.5 31.3%
- 89 GPT-5 nano 30.4%
- 90
Ling-3.0-flash-Fin 29.3%
- 91
Qwen 3.8 27B 28.7%
- 92 Grok 4.1 Fast non-reasoning 28.4%
- 93
Llama 4 Scout 23.3%
- 94
Laguna M.1 23.1%
- 95
Laguna XS.2 21.3%
- 96
Command A+ 19.7%
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | Claude Opus 5 | 63.6% | Jul 2026 | Official leaderboard | |
| 2 | | 59.1% | Feb 2026 | Official leaderboard | |
| 3 | | 58.8% | Sep 2026 | Official leaderboard | |
| 4 | Claude Fable 5 | 56.1% | Jun 2026 | Official leaderboard | |
| 5 | | 55.9% | Dec 2025 | Official leaderboard | |
| 6 | | 55.8% | May 2026 | Official leaderboard | |
| 7 | Claude Opus 4.7 | 54.9% | Apr 2026 | Official leaderboard | |
| 8 | Claude Fable 5.1 | 53.5% | Sep 2026 | Official leaderboard | |
| 9 | | 53.4% | Aug 2026 | Official leaderboard | |
| 10 | Claude Opus 4.8 | 53.2% | May 2026 | Official leaderboard | |
| 11 | | 53.1% | Jul 2026 | Official leaderboard | |
| 12 | Claude Sonnet 5.5 | 52.9% | Sep 2026 | Official leaderboard | |
| 13 | GPT-5.1 | 52.7% | Nov 2025 | Official leaderboard | |
| 14 | | 52.2% | Nov 2025 | Official leaderboard | |
| 15 | Claude Haiku 5.5 | 51.5% | Oct 2026 | Official leaderboard | |
| 16 | | 51.3% | Apr 2026 | Official leaderboard | |
| 17 | | 50.6% | Jun 2025 | Official leaderboard | |
| 18 | | 49.9% | Oct 2026 | Official leaderboard | |
| 19 | Claude Opus 5.5 | 49.8% | Sep 2026 | Official leaderboard | |
| 20 | GPT-5.2 | 49.8% | Dec 2025 | Official leaderboard | |
| 21 | GPT-5 | 49.6% | Aug 2025 | Official leaderboard | |
| 22 | Grok 4.7 | 49.5% | Sep 2026 | Official leaderboard | |
| 23 | Kimi K3 | 49.4% | Jul 2026 | Official leaderboard | |
| 24 | | 49.4% | Aug 2026 | Official leaderboard | |
| 25 | Claude Opus 4.5 | 49.2% | thinking | Nov 2025 | Official leaderboard |
| 26 | Claude Opus 4.6 | 49.1% | thinking | Feb 2026 | Official leaderboard |
| 27 | GPT-5.5 | 49.1% | Apr 2026 | Official leaderboard | |
| 28 | GPT-6.1 Sol | 48.8% | Sep 2026 | Official leaderboard | |
| 29 | GPT-6 Astra | 48.5% | Sep 2026 | Official leaderboard | |
| 30 | | 48.1% | Sep 2026 | Official leaderboard | |
| 31 | | 47.6% | Mar 2026 | Official leaderboard | |
| 32 | Claude Sonnet 5 | 47.5% | Jun 2026 | Official leaderboard | |
| 33 | o3 | 47.3% | Apr 2025 | Official leaderboard | |
| 34 | Claude Opus 4.1 | 47.2% | thinking | Aug 2025 | Official leaderboard |
| 35 | GPT-6 Sol | 47.1% | Sep 2026 | Official leaderboard | |
| 36 | | 46.3% | Jun 2026 | Official leaderboard | |
| 37 | MiMo-V2.6 Pro | 45% | Sep 2026 | Official leaderboard | |
| 38 | Grok 4.6 | 44.7% | Aug 2026 | Official leaderboard | |
| 39 | GPT-6 Luna | 44.7% | Sep 2026 | Official leaderboard | |
| 40 | Claude Sonnet 4.5 | 44.1% | thinking | Sep 2025 | Official leaderboard |
| 41 | GPT-5.6 Sol | 44% | Jul 2026 | Official leaderboard | |
| 42 | | 43.5% | Jul 2026 | Official leaderboard | |
| 43 | GPT-5.6 Terra | 43.4% | Jul 2026 | Official leaderboard | |
| 44 | Grok 4.5 | 43.3% | Jul 2026 | Official leaderboard | |
| 45 | | 43.3% | Aug 2026 | Official leaderboard | |
| 46 | GPT-5 mini | 43% | Aug 2025 | Official leaderboard | |
| 47 | GLM-5.3 | 42.9% | Aug 2026 | Official leaderboard | |
| 48 | | 42.5% | Aug 2026 | Official leaderboard | |
| 49 | GPT-5.6 Luna | 42.4% | Jul 2026 | Official leaderboard | |
| 50 | GLM-5.1 | 41.6% | Apr 2026 | Official leaderboard | |
| 51 | | 41.4% | Jul 2026 | Official leaderboard | |
| 52 | GPT-5.4 | 41.3% | xhigh | Mar 2026 | Official leaderboard |
| 53 | | 41.2% | Jul 2026 | Official leaderboard | |
| 54 | | 41.2% | Sep 2026 | Official leaderboard | |
| 55 | MiMo-V2.6 Flash | 41.1% | Sep 2026 | Official leaderboard | |
| 56 | GPT-5.4 Nano | 41% | Mar 2026 | Official leaderboard | |
| 57 | GLM-5.2 | 40.8% | Jun 2026 | Official leaderboard | |
| 58 | | 40.7% | Oct 2026 | Official leaderboard | |
| 59 | | 40.7% | Aug 2026 | Official leaderboard | |
| 60 | | 40.5% | non-thinking | Sep 2025 | Official leaderboard |
| 61 | | 40.5% | Apr 2026 | Official leaderboard | |
| 62 | | 40.4% | thinking | Jun 2025 | Official leaderboard |
| 63 | Kimi K2.6 | 40.1% | Apr 2026 | Official leaderboard | |
| 64 | Kimi K2.5 | 39.3% | thinking | Jan 2026 | Official leaderboard |
| 65 | | 38.8% | May 2026 | Official leaderboard | |
| 66 | | 38.6% | Jun 2026 | Official leaderboard | |
| 67 | Grok 4 | 38.1% | Jul 2025 | Official leaderboard | |
| 68 | Grok 4.3 | 38.1% | Apr 2026 | Official leaderboard | |
| 69 | | 37.9% | Jul 2026 | Official leaderboard | |
| 70 | Grok 4 Fast | 37.4% | reasoning | Sep 2025 | Official leaderboard |
| 71 | | 36.9% | Mar 2026 | Official leaderboard | |
| 72 | | 36.5% | Apr 2025 | Official leaderboard | |
| 73 | Claude Sonnet 4 | 35% | thinking | May 2025 | Official leaderboard |
| 74 | | 34.4% | Mar 2026 | Official leaderboard | |
| 75 | | 34.2% | thinking | Sep 2025 | Official leaderboard |
| 76 | | 34.1% | Dec 2025 | Official leaderboard | |
| 77 | o4-mini | 33.8% | Apr 2025 | Official leaderboard | |
| 78 | | 33.8% | Apr 2026 | Official leaderboard | |
| 79 | | 33% | Feb 2026 | Official leaderboard | |
| 80 | GLM-4.7 | 32.8% | Dec 2025 | Official leaderboard | |
| 81 | Claude Haiku 4.5 | 32.7% | thinking | Oct 2025 | Official leaderboard |
| 82 | MiMo-V2.5-Pro | 32.5% | Apr 2026 | Official leaderboard | |
| 83 | | 32.3% | Aug 2026 | Official leaderboard | |
| 84 | Grok 4.20 | 32.2% | reasoning | Feb 2026 | Official leaderboard |
| 85 | MiMo-V2.5 | 31.9% | Apr 2026 | Official leaderboard | |
| 86 | | 31.6% | Sep 2025 | Official leaderboard | |
| 87 | | 31.4% | Sep 2025 | Official leaderboard | |
| 88 | Mercury 2.5 | 31.3% | Sep 2026 | Official leaderboard | |
| 89 | GPT-5 nano | 30.4% | Aug 2025 | Official leaderboard | |
| 90 | | 29.3% | Sep 2026 | Official leaderboard | |
| 91 | | 28.7% | Aug 2026 | Official leaderboard | |
| 92 | Grok 4.1 Fast | 28.4% | non-reasoning | Nov 2025 | Official leaderboard |
| 93 | | 23.3% | Apr 2025 | Official leaderboard | |
| 94 | | 23.1% | Apr 2026 | Official leaderboard | |
| 95 | | 21.3% | Apr 2026 | Official leaderboard | |
| 96 | | 19.7% | May 2026 | Official leaderboard |
Scores at each effort level
Models the leaderboard ran at two or more effort levels. We don’t have enough cost data here to say what the extra effort costs.
3 models have held number one since its release in Feb 2026
Lab claims count from the day the card came out, independent runs from the model’s release.
Scores over time
All the scores we have, one dot each, so a model tested at several settings appears more than once.
No lab model card reports it yet
We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark.
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