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MedCode leaderboard (Oct 2026): AI model scores

As of 13 Oct 2026, the highest reported score on MedCode is Claude Opus 5 (Anthropic) at 63.57%, per Vals AI.

What it measures

Medical coding for billing: assigning ICD-10-CM diagnosis codes from de-identified patient records.

Assigning the correct medical billing codes from clinical documentation.

What the score means

Accuracy

Share of coding tasks answered correctly.

Results from published AI leaderboards. Compare models within each benchmark; scores from different tests aren’t directly comparable. How we collect these results

Scores by model

Run by Vals AI. Leaderboard dated 13 Oct 2026. Last checked 21 Oct 2026. Showing top 25 of 107 models listed.

Highlight a provider: Anthropic OpenAI Google xAI Meta Moonshot

  • Anthropic
  • OpenAI
  • Google
  • xAI
  • Meta
  • Moonshot
MedCode: top 15 by AccuracyBars from zero. Leader: Claude Opus 5 at 63.57%. Full values in the table below.0%20%40%60%80%Claude Opus 5 (Anthropic), rank 1: 63.57%AClaude Opus 563.57%Gemini 3.1 Pro Preview (02/26) (Google), rank 2: 59.06%GGemini 3.1 Pro Preview59.06%Gemini 4 Argon (Google), rank 3: 58.80%GGemini 4 Argon58.80%Claude Fable 5 (Anthropic), rank 4: 56.07%AClaude Fable 556.07%Gemini 3 Flash (12/25) (Google), rank 5: 55.92%GGemini 3 Flash55.92%Gemini 3.5 Flash (Google), rank 6: 55.83%GGemini 3.5 Flash55.83%Claude Opus 4.7 (Anthropic), rank 7: 54.86%AClaude Opus 4.754.86%Claude Fable 5.1 (Anthropic), rank 8: 53.51%AClaude Fable 5.153.51%Gemini 3.7 Flash (Google), rank 9: 53.39%GGemini 3.7 Flash53.39%Claude Opus 4.8 (Anthropic), rank 10: 53.22%AClaude Opus 4.853.22%Gemini 3.6 Flash (Google), rank 11: 53.15%GGemini 3.6 Flash53.15%Claude Sonnet 5.5 (Anthropic), rank 12: 52.92%AClaude Sonnet 5.552.92%GPT 5.1 (OpenAI), rank 13: 52.73%OGPT 5.152.73%Gemini 3 Pro (11/25) (Google), rank 14: 52.20%GGemini 3 Pro52.20%Claude Haiku 5.5 (Anthropic), rank 15: 51.54%AClaude Haiku 5.551.54%
MedCode: top 12 by AccuracyBars from zero. Leader: Claude Opus 5 at 63.57%. Full values in the table below.0%25%50%75%Claude Opus 5 (Anthropic), rank 1: 63.57%AClaude Opus 563.57%Gemini 3.1 Pro Preview (02/26) (Google), rank 2: 59.06%GGemini 3.1 Pro P…59.06%Gemini 4 Argon (Google), rank 3: 58.80%GGemini 4 Argon58.80%Claude Fable 5 (Anthropic), rank 4: 56.07%AClaude Fable 556.07%Gemini 3 Flash (12/25) (Google), rank 5: 55.92%GGemini 3 Flash55.92%Gemini 3.5 Flash (Google), rank 6: 55.83%GGemini 3.5 Flash55.83%Claude Opus 4.7 (Anthropic), rank 7: 54.86%AClaude Opus 4.754.86%Claude Fable 5.1 (Anthropic), rank 8: 53.51%AClaude Fable 5.153.51%Gemini 3.7 Flash (Google), rank 9: 53.39%GGemini 3.7 Flash53.39%Claude Opus 4.8 (Anthropic), rank 10: 53.22%AClaude Opus 4.853.22%Gemini 3.6 Flash (Google), rank 11: 53.15%GGemini 3.6 Flash53.15%Claude Sonnet 5.5 (Anthropic), rank 12: 52.92%AClaude Sonnet 5.552.92%
MedCode: top 15 by AccuracyDot plot, axis starting at 45% (not zero). Leader: Claude Opus 5 at 63.57%. Full values in the table below.45%50%55%60%65%ACCURACY · AXIS STARTS AT 45%, NOT ZEROClaude Opus 5 (Anthropic), rank 1: 63.57%AClaude Opus 563.57%Gemini 3.1 Pro Preview (02/26) (Google), rank 2: 59.06%GGemini 3.1 Pro Preview59.06%Gemini 4 Argon (Google), rank 3: 58.80%GGemini 4 Argon58.80%Claude Fable 5 (Anthropic), rank 4: 56.07%AClaude Fable 556.07%Gemini 3 Flash (12/25) (Google), rank 5: 55.92%GGemini 3 Flash55.92%Gemini 3.5 Flash (Google), rank 6: 55.83%GGemini 3.5 Flash55.83%Claude Opus 4.7 (Anthropic), rank 7: 54.86%AClaude Opus 4.754.86%Claude Fable 5.1 (Anthropic), rank 8: 53.51%AClaude Fable 5.153.51%Gemini 3.7 Flash (Google), rank 9: 53.39%GGemini 3.7 Flash53.39%Claude Opus 4.8 (Anthropic), rank 10: 53.22%AClaude Opus 4.853.22%Gemini 3.6 Flash (Google), rank 11: 53.15%GGemini 3.6 Flash53.15%Claude Sonnet 5.5 (Anthropic), rank 12: 52.92%AClaude Sonnet 5.552.92%GPT 5.1 (OpenAI), rank 13: 52.73%OGPT 5.152.73%Gemini 3 Pro (11/25) (Google), rank 14: 52.20%GGemini 3 Pro52.20%Claude Haiku 5.5 (Anthropic), rank 15: 51.54%AClaude Haiku 5.551.54%
MedCode: top 12 by AccuracyDot plot, axis starting at 40% (not zero). Leader: Claude Opus 5 at 63.57%. Full values in the table below.40%50%60%AXIS STARTS AT 40%, NOT ZEROClaude Opus 5 (Anthropic), rank 1: 63.57%AClaude Opus 563.57%Gemini 3.1 Pro Preview (02/26) (Google), rank 2: 59.06%GGemini 3.1 Pro P…59.06%Gemini 4 Argon (Google), rank 3: 58.80%GGemini 4 Argon58.80%Claude Fable 5 (Anthropic), rank 4: 56.07%AClaude Fable 556.07%Gemini 3 Flash (12/25) (Google), rank 5: 55.92%GGemini 3 Flash55.92%Gemini 3.5 Flash (Google), rank 6: 55.83%GGemini 3.5 Flash55.83%Claude Opus 4.7 (Anthropic), rank 7: 54.86%AClaude Opus 4.754.86%Claude Fable 5.1 (Anthropic), rank 8: 53.51%AClaude Fable 5.153.51%Gemini 3.7 Flash (Google), rank 9: 53.39%GGemini 3.7 Flash53.39%Claude Opus 4.8 (Anthropic), rank 10: 53.22%AClaude Opus 4.853.22%Gemini 3.6 Flash (Google), rank 11: 53.15%GGemini 3.6 Flash53.15%Claude Sonnet 5.5 (Anthropic), rank 12: 52.92%AClaude Sonnet 5.552.92%
Accuracy
Share of coding tasks answered correctly.

All scores

MedCode scores
RankModelProviderAccuracyPrice in / out ($/1M tokens)
1 Claude Opus 5Anthropic63.57%$5 / $25
2 Gemini 3.1 Pro Preview (02/26)Google59.06%$2 / $12
3 Gemini 4 ArgonGoogle58.80%$4 / $20
4 Claude Fable 5Anthropic56.07%$10 / $50
5 Gemini 3 Flash (12/25)Google55.92%$0.5 / $3
6 Gemini 3.5 FlashGoogle55.83%$1.5 / $9
7 Claude Opus 4.7Anthropic54.86%$5 / $25
8 Claude Fable 5.1Anthropic53.51%$10 / $50
9 Gemini 3.7 FlashGoogle53.39%$1.5 / $7.5
10 Claude Opus 4.8Anthropic53.22%$5 / $25
Show 15 more rows
RankModelProviderAccuracyPrice in / out ($/1M tokens)
11 Gemini 3.6 FlashGoogle53.15%$1.5 / $7.5
12 Claude Sonnet 5.5Anthropic52.92%$2 / $10
13 GPT 5.1OpenAI52.73%$1.25 / $10
14 Gemini 3 Pro (11/25)Google52.20%$2 / $12
15 Claude Haiku 5.5Anthropic51.54%$0.1 / $0.5
16 Muse SparkMeta51.31%N/A
17 Gemini 2.5 ProGoogle50.59%$1.25 / $10
18 Wonder FullMeta49.93%$4 / $20
19 Claude Opus 5.5Anthropic49.80%$4 / $20
20 GPT 5.2OpenAI49.75%$1.75 / $14
21 GPT 5OpenAI49.63%$1.25 / $10
22 Grok 4.7xAI49.55%$2 / $6
23 Kimi K3Moonshot49.36%$3 / $15
24 Muse Spark 1.2Meta49.35%$1.25 / $4.25
25 Claude Opus 4.5 (Thinking)Anthropic49.16%$5 / $25

Source: Vals AI leaderboard ↗

Top model here: Claude Opus 5 (Anthropic). Try prompts for Claude →