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GPQA Diamond leaderboard (Sep 2026): AI model scores

As of 1 Sep 2026, the highest reported OpenAI score on GPQA Diamond is GPT-5.6 Sol (OpenAI) at 95.20%, #2 on that leaderboard, per Vals AI. The source no longer updates this leaderboard.

What it measures

Graduate-level “Google-proof” science questions that require deep reasoning.

Graduate-level biology, physics and chemistry questions written to be “Google-proof”.

What the score means

Accuracy

Share of multiple-choice questions 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 Leaderboard dated 1 Sep 2026 (no longer updated by the source). Last checked 22 Oct 2026. Showing top 25 of 138 models listed.

Highlight a provider: Anthropic OpenAI Google xAI Meta DeepSeek Alibaba Moonshot MiniMax

Highlighting OpenAI models. Other providers are dimmed. Show all providers

  • Anthropic
  • OpenAI
  • Google
  • xAI
  • Meta
  • DeepSeek
  • Alibaba
  • Moonshot
  • MiniMax
GPQA Diamond: top 15 by AccuracyBars from zero. Leader: Gemini 3.1 Pro Preview (02/26) at 95.45%. OpenAI models highlighted. Full values in the table below.0%20%40%60%80%100%Gemini 3.1 Pro Preview (02/26) (Google), rank 1: 95.45%GGemini 3.1 Pro Preview95.45%GPT-5.6 Sol (OpenAI), rank 2: 95.20%OGPT-5.6 Sol95.20%Grok 4.6 (xAI), rank 3: 94.70%XGrok 4.694.70%Gemini 3.8 Flash (Google), rank 4: 94.44%GGemini 3.8 Flash94.44%Gemini 3.7 Flash (Google), rank 5: 93.94%GGemini 3.7 Flash93.94%Qwen 3.8 Max (Alibaba), rank 6: 93.69%QQwen 3.8 Max93.69%Gemini 3.6 Flash (Google), rank 7: 93.43%GGemini 3.6 Flash93.43%Claude Opus 5 (Anthropic), rank 8: 93.43%AClaude Opus 593.43%Claude Fable 5.1 (Anthropic), rank 9: 93.43%AClaude Fable 5.193.43%Claude Fable 5 (Anthropic), rank 10: 93.18%AClaude Fable 593.18%GPT 5.5 (OpenAI), rank 11: 93.18%OGPT 5.593.18%Kimi K3 (Moonshot), rank 12: 92.93%KKimi K392.93%Grok 4.5 (xAI), rank 13: 92.93%XGrok 4.592.93%Gemini 3.5 Flash (Google), rank 14: 92.68%GGemini 3.5 Flash92.68%MiniMax-M3 (MiniMax), rank 15: 92.68%MMMiniMax-M392.68%GPT-5.6 Luna (OpenAI), rank 18: 91.67%O#18 GPT-5.6 Luna91.67%GPT 5.2 (OpenAI), rank 20: 91.67%O#20 GPT 5.291.67%GPT 5.4 (xhigh) (OpenAI), rank 21: 91.67%O#21 GPT 5.491.67%
GPQA Diamond: top 12 by AccuracyBars from zero. Leader: Gemini 3.1 Pro Preview (02/26) at 95.45%. OpenAI models highlighted. Full values in the table below.0%50%100%Gemini 3.1 Pro Preview (02/26) (Google), rank 1: 95.45%GGemini 3.1 Pro P…95.45%GPT-5.6 Sol (OpenAI), rank 2: 95.20%OGPT-5.6 Sol95.20%Grok 4.6 (xAI), rank 3: 94.70%XGrok 4.694.70%Gemini 3.8 Flash (Google), rank 4: 94.44%GGemini 3.8 Flash94.44%Gemini 3.7 Flash (Google), rank 5: 93.94%GGemini 3.7 Flash93.94%Qwen 3.8 Max (Alibaba), rank 6: 93.69%QQwen 3.8 Max93.69%Gemini 3.6 Flash (Google), rank 7: 93.43%GGemini 3.6 Flash93.43%Claude Opus 5 (Anthropic), rank 8: 93.43%AClaude Opus 593.43%Claude Fable 5.1 (Anthropic), rank 9: 93.43%AClaude Fable 5.193.43%Claude Fable 5 (Anthropic), rank 10: 93.18%AClaude Fable 593.18%GPT 5.5 (OpenAI), rank 11: 93.18%OGPT 5.593.18%Kimi K3 (Moonshot), rank 12: 92.93%KKimi K392.93%GPT-5.6 Luna (OpenAI), rank 18: 91.67%O#18 GPT-5.6 Luna91.67%GPT 5.2 (OpenAI), rank 20: 91.67%O#20 GPT 5.291.67%GPT 5.4 (xhigh) (OpenAI), rank 21: 91.67%O#21 GPT 5.491.67%
GPQA Diamond: top 15 by AccuracyDot plot, axis starting at 85% (not zero). Leader: Gemini 3.1 Pro Preview (02/26) at 95.45%. OpenAI models highlighted. Full values in the table below.85%87.5%90%92.5%95%ACCURACY · AXIS STARTS AT 85%, NOT ZEROGemini 3.1 Pro Preview (02/26) (Google), rank 1: 95.45%GGemini 3.1 Pro Preview95.45%GPT-5.6 Sol (OpenAI), rank 2: 95.20%OGPT-5.6 Sol95.20%Grok 4.6 (xAI), rank 3: 94.70%XGrok 4.694.70%Gemini 3.8 Flash (Google), rank 4: 94.44%GGemini 3.8 Flash94.44%Gemini 3.7 Flash (Google), rank 5: 93.94%GGemini 3.7 Flash93.94%Qwen 3.8 Max (Alibaba), rank 6: 93.69%QQwen 3.8 Max93.69%Gemini 3.6 Flash (Google), rank 7: 93.43%GGemini 3.6 Flash93.43%Claude Opus 5 (Anthropic), rank 8: 93.43%AClaude Opus 593.43%Claude Fable 5.1 (Anthropic), rank 9: 93.43%AClaude Fable 5.193.43%Claude Fable 5 (Anthropic), rank 10: 93.18%AClaude Fable 593.18%GPT 5.5 (OpenAI), rank 11: 93.18%OGPT 5.593.18%Kimi K3 (Moonshot), rank 12: 92.93%KKimi K392.93%Grok 4.5 (xAI), rank 13: 92.93%XGrok 4.592.93%Gemini 3.5 Flash (Google), rank 14: 92.68%GGemini 3.5 Flash92.68%MiniMax-M3 (MiniMax), rank 15: 92.68%MMMiniMax-M392.68%GPT-5.6 Luna (OpenAI), rank 18: 91.67%O#18 GPT-5.6 Luna91.67%GPT 5.2 (OpenAI), rank 20: 91.67%O#20 GPT 5.291.67%GPT 5.4 (xhigh) (OpenAI), rank 21: 91.67%O#21 GPT 5.491.67%
GPQA Diamond: top 12 by AccuracyDot plot, axis starting at 85% (not zero). Leader: Gemini 3.1 Pro Preview (02/26) at 95.45%. OpenAI models highlighted. Full values in the table below.85%90%95%100%AXIS STARTS AT 85%, NOT ZEROGemini 3.1 Pro Preview (02/26) (Google), rank 1: 95.45%GGemini 3.1 Pro P…95.45%GPT-5.6 Sol (OpenAI), rank 2: 95.20%OGPT-5.6 Sol95.20%Grok 4.6 (xAI), rank 3: 94.70%XGrok 4.694.70%Gemini 3.8 Flash (Google), rank 4: 94.44%GGemini 3.8 Flash94.44%Gemini 3.7 Flash (Google), rank 5: 93.94%GGemini 3.7 Flash93.94%Qwen 3.8 Max (Alibaba), rank 6: 93.69%QQwen 3.8 Max93.69%Gemini 3.6 Flash (Google), rank 7: 93.43%GGemini 3.6 Flash93.43%Claude Opus 5 (Anthropic), rank 8: 93.43%AClaude Opus 593.43%Claude Fable 5.1 (Anthropic), rank 9: 93.43%AClaude Fable 5.193.43%Claude Fable 5 (Anthropic), rank 10: 93.18%AClaude Fable 593.18%GPT 5.5 (OpenAI), rank 11: 93.18%OGPT 5.593.18%Kimi K3 (Moonshot), rank 12: 92.93%KKimi K392.93%GPT-5.6 Luna (OpenAI), rank 18: 91.67%O#18 GPT-5.6 Luna91.67%GPT 5.2 (OpenAI), rank 20: 91.67%O#20 GPT 5.291.67%GPT 5.4 (xhigh) (OpenAI), rank 21: 91.67%O#21 GPT 5.491.67%
Accuracy
Share of multiple-choice questions answered correctly.

All scores

GPQA Diamond scores, OpenAI models highlighted
RankModelProviderAccuracyPrice in / out ($/1M tokens)
1 Gemini 3.1 Pro Preview (02/26)Google95.45%$2 / $12
2 GPT-5.6 SolOpenAI95.20%$4 / $20
3 Grok 4.6xAI94.70%$2 / $6
4 Gemini 3.8 FlashGoogle94.44%$1.5 / $7.5
5 Gemini 3.7 FlashGoogle93.94%$1.5 / $7.5
6 Qwen 3.8 MaxAlibaba93.69%$2 / $6
7 Gemini 3.6 FlashGoogle93.43%$1.5 / $7.5
8 Claude Opus 5Anthropic93.43%$5 / $25
9 Claude Fable 5.1Anthropic93.43%$10 / $50
10 Claude Fable 5Anthropic93.18%$10 / $50
Show 15 more rows
RankModelProviderAccuracyPrice in / out ($/1M tokens)
11 GPT 5.5OpenAI93.18%$5 / $30
12 Kimi K3Moonshot92.93%$3 / $15
13 Grok 4.5xAI92.93%$2 / $6
14 Gemini 3.5 FlashGoogle92.68%$1.5 / $9
15 MiniMax-M3MiniMax92.68%$0.6 / $2.4
16 Claude Opus 4.8Anthropic92.42%$5 / $25
17 DeepSeek V4 Pro 0813DeepSeek92.42%$1.32 / $3.96
18 GPT-5.6 LunaOpenAI91.67%$0.2 / $1.2
19 Gemini 3 Pro (11/25)Google91.67%$2 / $12
20 GPT 5.2OpenAI91.67%$1.75 / $14
21 GPT 5.4 (xhigh)OpenAI91.67%$2.5 / $15
22 Grok 4.3xAI91.41%$1.25 / $2.5
23 Muse Spark 1.1Meta91.16%$1.25 / $4.25
24 GPT-5.6 TerraOpenAI90.91%$2 / $12
25 Qwen 3.7 MaxAlibaba90.15%$2.5 / $7.5

Source: Vals AI leaderboard ↗

Best-ranked OpenAI model here: GPT-5.6 Sol (OpenAI). Try prompts for ChatGPT →