Benchmark Almanac

FrontierMath Tier 4 v2

GPT-6.1 Sol 100% leads since September 2026
GPT-6.1 Sol 100% leads since September 2026
GPT-6.1 Sol 100% leads since September 2026
In use

Models solve 43 unpublished research-level math problems and submit answers that code checks automatically. Scored by share correct.

Version 2 corrected 12 problems and removed 7 from the original Tier 4 set.

Made by
Epoch AI
Released
June 2026
Kind
Research mathematics
Level
Research frontier
Scored
Checked automatically
Answers
Short answer
Tasks
Public, plus a private test set
Strongest model tested
Claude Fable 5.2 #1 on the capability index
Last in a launch post
July 2026
Last model added
November 2026
Scores refreshed
November 12th, 2026

In the authors’ words

We introduce FrontierMath, a benchmark of hundreds of original, exceptionally challenging mathematics problems crafted and vetted by expert mathematicians. The questions cover most major branches of modern mathematics – from computationally intensive problems in number theory and real analysis to abstract questions in algebraic geometry and category theory. Solving a typical problem requires multiple hours of effort from a researcher in the relevant branch of mathematics, and for the upper end questions, multiple days. FrontierMath uses new, unpublished problems and automated verification to reliably evaluate models while minimizing risk of data contamination. Current state-of-the-art AI models solve under 2% of problems, revealing a vast gap between AI capabilities and the prowess of the mathematical community. As AI systems advance toward expert-level mathematical abilities, FrontierMath offers a rigorous testbed that quantifies their progress.

Abstract of FrontierMath: A Benchmark for Evaluating Advanced Mathematical Reasoning in AI (arXiv:2411.04872, CC0)
75
Entries on its own leaderboard, 68 models we track
3
Launch posts list it, from 1 lab

2 models share the top score of 100%

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders.

GPT-6.1 Sol leads with 100% 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.

GPT-6.1 Sol leads with 100%, 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.

75 entries. Scroll sideways for the rest.

  1. 1 GPT-6.1 Sol max; task version 2.1.0 100%
  2. 2 Claude Fable 5.2 max; task version 2.1.0 100%
  3. 3 GPT-6 Astra high; task version 2.0.0 97.6%
  4. 4 Gemini 4 Carbon high; task version 2.1.0 95.1%
  5. 5 Claude Opus 5.5 max; task version 2.0.0 95%
  6. 6 GPT-6.1 Terra max; task version 2.1.0 92.7%
  7. 7 Claude Fable 5 max; task version 2.0.0 90.2%
  8. 8 GPT-6 Sol max; task version 2.0.0 90%
  9. 9 Claude Fable 5.1 max; task version 2.0.0 87.8%
  10. 10 GPT-5.6 Sol max; task version 2.0.0 82.9%
  11. 11 gpt-5.6-sol_promax task version 2.0.0 80.5%
  12. 12 Claude Sonnet 5.5 max; task version 2.1.0 80.5%
  13. 13 GPT-5.5 Pro xhigh; task version 2.0.0 78%
  14. 14 Gemini 4 Argon high; task version 2.1.0 78%
  15. 15 gdm-ai-co-mathematician task version 2.0.0 75.6%
  16. 16 Claude Opus 5 max; task version 2.0.0 73.2%
  17. 17 GPT-5.5 xhigh; task version 2.0.0 72.5%
  18. 18 GPT-5.6 Terra max; task version 2.0.0 70.7%
  19. 19 muse-wonder-1.0 max; task version 2.1.0 70.7%
  20. 20 kimi-k3.1-pro-together max; task version 2.1.0 65.8%
  21. 21 GPT-5.6 Luna max; task version 2.0.0 61%
  22. 22 GPT-5.4 Pro xhigh; task version 2.0.0 58.5%
  23. 23 Claude Opus 4.8 max; task version 2.0.0 56.1%
  24. 24 GPT-6 Luna max; task version 2.0.0 56.1%
  25. 25 GPT-5.4 xhigh; task version 2.0.0 49%
  26. 26 Qwen 3.8 Max xhigh; task version 2.0.0 46.3%
  27. 27 Muse Spark 1.3 max; task version 2.0.0 46.3%
  28. 28 Claude Haiku 5.5 max; task version 2.1.0 46.3%
  29. 29 DeepSeek V4.1 Flash 1017 max; task version 2.1.0 46.3%
  30. 30 GPT-5.2 Pro xhigh; task version 2.0.0 46%
  31. 31 Kimi K3 max; task version 2.0.0 39%
  32. 32 Gemini 3.7 Flash high; task version 2.0.0 36.6%
  33. 33 Qwen3.7-Max task version 2.0.0 34.1%
  34. 34 Qwen3.8 Max (0902) xhigh; task version 2.0.0 34.1%
  35. 35 Claude Opus 4.7 max; task version 2.0.0 31.7%
  36. 36 Grok 4.6 xhigh; task version 2.0.0 31.7%
  37. 37 Muse-Spark-Open-816B-A42B xhigh; task version 2.1.0 31.7%
  38. 38 GPT-5.2 xhigh; task version 2.0.0 31.7%
  39. 39 GLM-5.2 max; task version 2.0.0 29.3%
  40. 40 Claude Sonnet 5 max; task version 2.0.0 29.3%
  41. 41 GLM-5.3 max; task version 2.0.0 29.3%
  42. 42 Claude Opus 4.6 max; task version 2.0.0 26.8%
  43. 43 Gemini 3.1 Pro task version 2.0.0 26.8%
  44. 44 Gemini 3.5 Flash high; task version 2.0.0 26.8%
  45. 45 DeepSeek V4 Pro 0813 max; task version 2.0.0 26.8%
  46. 46 DeepSeek V4.1 Flash max; task version 2.1.0 26.8%
  47. 47 mistral-large-4-0 high; task version 2.1.0 26.8%
  48. 48 Kimi K2.6 task version 2.0.0 25.6%
  49. 49 Grok 4.5 high; task version 2.0.0 24.4%
  50. 50 DeepSeek V4 Flash 0731 max; task version 2.0.0 24.4%
  51. 51 GPT-5 high; task version 2.0.0 21.9%
  52. 52 Gemini 3.6 Flash high; task version 2.0.0 21.9%
  53. 53 Gemini 3.8 Flash high; task version 2.0.0 21.9%
  54. 54 GPT-5 Pro high; task version 2.0.0 19.5%
  55. 55 Gemini 3 Flash task version 2.0.0 17.1%
  56. 56 grok-4.20-0309-reasoning task version 2.0.0 17.1%
  57. 57 Inkling-Small xhigh; task version 2.0.0 17.1%
  58. 58 GLM-5.3-Flash max; task version 2.0.0 17.1%
  59. 59 Grok 4.7 xhigh; task version 2.0.0 17.1%
  60. 60 Grok 4.3 high; task version 2.0.0 14.6%
  61. 61 GPT-5 mini high; task version 2.0.0 12.2%
  62. 62 GPT-5.4 Nano high; task version 2.0.0 12.2%
  63. 63 Kimi K2.7 Code task version 2.0.0 12.2%
  64. 64 GPT-5.4 Mini xhigh; task version 2.0.0 9.76%
  65. 65 o4-mini high; task version 2.0.0 4.88%
  66. 66 Claude Opus 4.5 32K; task version 2.0.0 4.88%
  67. 67 Inkling xhigh; task version 2.0.0 4.88%
  68. 68 Claude Opus 4.1 32K; task version 2.0.0 2.44%
  69. 69 GPT-5 nano high; task version 2.0.0 2.44%
  70. 70 Claude Sonnet 4.5 32K; task version 2.0.0 2.44%
  71. 71 DeepSeek-V4-Pro max; task version 2.0.0 2.44%
  72. 72 GPT-5.5 Instant task version 2.0.0 2.44%
  73. 73 o3-mini high; task version 2.0.0 0%
  74. 74 Gemini 2.5 Pro Jun 2025, task version 2.0.0 0%
  75. 75 Gemini 3.5 Flash-Lite high; task version 2.0.0 0%

Source: Official FrontierMath Tier 4 v2 leaderboard

  1. 1 GPT-6.1 Sol max; task version 2.1.0 100%
  2. 2 Claude Fable 5.2 max; task version 2.1.0 100%
  3. 3 GPT-6 Astra high; task version 2.0.0 97.6%
  4. 4 Gemini 4 Carbon high; task version 2.1.0 95.1%
  5. 5 Claude Opus 5.5 max; task version 2.0.0 95%
  6. 6 GPT-6.1 Terra max; task version 2.1.0 92.7%
  7. 7 Claude Fable 5 max; task version 2.0.0 90.2%
  8. 8 GPT-6 Sol max; task version 2.0.0 90%
  9. 9 Claude Fable 5.1 max; task version 2.0.0 87.8%
  10. 10 GPT-5.6 Sol max; task version 2.0.0 82.9%
  11. 11 Claude Sonnet 5.5 max; task version 2.1.0 80.5%
  12. 12 GPT-5.5 Pro xhigh; task version 2.0.0 78%
  13. 13 Gemini 4 Argon high; task version 2.1.0 78%
  14. 14 AI Co-Mathematician 75.6%
  15. 15 Claude Opus 5 max; task version 2.0.0 73.2%
  16. 16 GPT-5.5 xhigh; task version 2.0.0 72.5%
  17. 17 GPT-5.6 Terra max; task version 2.0.0 70.7%
  18. 18 Muse Wonder max 70.7%
  19. 19 Kimi K3.1 Pro Together, max 65.8%
  20. 20 GPT-5.6 Luna max; task version 2.0.0 61%
  21. 21 GPT-5.4 Pro xhigh; task version 2.0.0 58.5%
  22. 22 Claude Opus 4.8 max; task version 2.0.0 56.1%
  23. 23 GPT-6 Luna max; task version 2.0.0 56.1%
  24. 24 GPT-5.4 xhigh; task version 2.0.0 49%
  25. 25 Qwen 3.8 Max xhigh; task version 2.0.0 46.3%
  26. 26 Muse Spark 1.3 max; task version 2.0.0 46.3%
  27. 27 Claude Haiku 5.5 max; task version 2.1.0 46.3%
  28. 28 DeepSeek V4.1 Flash 1017 max; task version 2.1.0 46.3%
  29. 29 GPT-5.2 Pro xhigh; task version 2.0.0 46%
  30. 30 Kimi K3 max; task version 2.0.0 39%
  31. 31 Gemini 3.7 Flash high; task version 2.0.0 36.6%
  32. 32 Qwen3.7-Max task version 2.0.0 34.1%
  33. 33 Qwen3.8 Max (0902) xhigh; task version 2.0.0 34.1%
  34. 34 Claude Opus 4.7 max; task version 2.0.0 31.7%
  35. 35 Grok 4.6 xhigh; task version 2.0.0 31.7%
  36. 36 Muse Spark Open xhigh 31.7%
  37. 37 GPT-5.2 xhigh; task version 2.0.0 31.7%
  38. 38 GLM-5.2 max; task version 2.0.0 29.3%
  39. 39 Claude Sonnet 5 max; task version 2.0.0 29.3%
  40. 40 GLM-5.3 max; task version 2.0.0 29.3%
  41. 41 Claude Opus 4.6 max; task version 2.0.0 26.8%
  42. 42 Gemini 3.1 Pro task version 2.0.0 26.8%
  43. 43 Gemini 3.5 Flash high; task version 2.0.0 26.8%
  44. 44 DeepSeek V4 Pro 0813 max; task version 2.0.0 26.8%
  45. 45 DeepSeek V4.1 Flash max; task version 2.1.0 26.8%
  46. 46 Mistral Large 4 Preview high 26.8%
  47. 47 Kimi K2.6 task version 2.0.0 25.6%
  48. 48 Grok 4.5 high; task version 2.0.0 24.4%
  49. 49 DeepSeek V4 Flash 0731 max; task version 2.0.0 24.4%
  50. 50 GPT-5 high; task version 2.0.0 21.9%
  51. 51 Gemini 3.6 Flash high; task version 2.0.0 21.9%
  52. 52 Gemini 3.8 Flash high; task version 2.0.0 21.9%
  53. 53 GPT-5 Pro high; task version 2.0.0 19.5%
  54. 54 Gemini 3 Flash task version 2.0.0 17.1%
  55. 55 Grok 4.20 17.1%
  56. 56 Inkling-Small xhigh; task version 2.0.0 17.1%
  57. 57 GLM-5.3-Flash max; task version 2.0.0 17.1%
  58. 58 Grok 4.7 xhigh; task version 2.0.0 17.1%
  59. 59 Grok 4.3 Beta high 14.6%
  60. 60 Grok 4.3 high; task version 2.0.0 14.6%
  61. 61 GPT-5 mini high; task version 2.0.0 12.2%
  62. 62 GPT-5.4 Nano high; task version 2.0.0 12.2%
  63. 63 Kimi K2.7 Code task version 2.0.0 12.2%
  64. 64 GPT-5.4 Mini xhigh 9.76%
  65. 65 o4-mini high 4.88%
  66. 66 Claude Opus 4.5 32k thinking 4.88%
  67. 67 Inkling xhigh 4.88%
  68. 68 Claude Opus 4.1 32K 2.44%
  69. 69 GPT-5 nano high 2.44%
  70. 70 Claude Sonnet 4.5 32k thinking 2.44%
  71. 71 DeepSeek-V4-Pro max 2.44%
  72. 72 GPT-5.5 Instant 2.44%
  73. 73 o3-mini high; task version 2.0.0 0%
  74. 74 Gemini 2.5 Pro Jun 2025, task version 2.0.0 0%
  75. 75 Gemini 3.5 Flash-Lite high; task version 2.0.0 0%

Sources: Official FrontierMath Tier 4 v2 leaderboard and Epoch AI runs (CC BY 4.0)

  1. 1 GPT-6.1 Sol max; task version 2.1.0 100%
  2. 2 Claude Fable 5.2 max; task version 2.1.0 100%
  3. 3 GPT-6 Astra high; task version 2.0.0 97.6%
  4. 4 Gemini 4 Carbon high; task version 2.1.0 95.1%
  5. 5 Claude Opus 5.5 max; task version 2.0.0 95%
  6. 6 GPT-6.1 Terra max; task version 2.1.0 92.7%
  7. 7 Claude Fable 5 max; task version 2.0.0 90.2%
  8. 8 GPT-6 Sol max; task version 2.0.0 90%
  9. 9 Claude Fable 5.1 max; task version 2.0.0 87.8%
  10. 10 GPT-5.6 Sol 83%
  11. 11 Claude Sonnet 5.5 max; task version 2.1.0 80.5%
  12. 12 GPT-5.5 Pro xhigh; task version 2.0.0 78%
  13. 13 Gemini 4 Argon high; task version 2.1.0 78%
  14. 14 AI Co-Mathematician 75.6%
  15. 15 Claude Opus 5 max; task version 2.0.0 73.2%
  16. 16 GPT-5.5 xhigh; task version 2.0.0 72.5%
  17. 17 GPT-5.6 Terra max; task version 2.0.0 70.7%
  18. 18 Muse Wonder max 70.7%
  19. 19 Kimi K3.1 Pro Together, max 65.8%
  20. 20 GPT-5.6 Luna max; task version 2.0.0 61%
  21. 21 GPT-5.4 Pro xhigh; task version 2.0.0 58.5%
  22. 22 Claude Opus 4.8 max; task version 2.0.0 56.1%
  23. 23 GPT-6 Luna max; task version 2.0.0 56.1%
  24. 24 GPT-5.4 xhigh; task version 2.0.0 49%
  25. 25 Qwen 3.8 Max xhigh; task version 2.0.0 46.3%
  26. 26 Muse Spark 1.3 max; task version 2.0.0 46.3%
  27. 27 Claude Haiku 5.5 max; task version 2.1.0 46.3%
  28. 28 DeepSeek V4.1 Flash 1017 max; task version 2.1.0 46.3%
  29. 29 GPT-5.2 Pro xhigh; task version 2.0.0 46%
  30. 30 Kimi K3 max; task version 2.0.0 39%
  31. 31 Gemini 3.7 Flash high; task version 2.0.0 36.6%
  32. 32 Qwen3.7-Max task version 2.0.0 34.1%
  33. 33 Qwen3.8 Max (0902) xhigh; task version 2.0.0 34.1%
  34. 34 Claude Opus 4.7 max; task version 2.0.0 31.7%
  35. 35 Grok 4.6 xhigh; task version 2.0.0 31.7%
  36. 36 Muse Spark Open xhigh 31.7%
  37. 37 GPT-5.2 xhigh; task version 2.0.0 31.7%
  38. 38 GLM-5.2 max; task version 2.0.0 29.3%
  39. 39 Claude Sonnet 5 max; task version 2.0.0 29.3%
  40. 40 GLM-5.3 max; task version 2.0.0 29.3%
  41. 41 Claude Opus 4.6 max; task version 2.0.0 26.8%
  42. 42 Gemini 3.1 Pro task version 2.0.0 26.8%
  43. 43 Gemini 3.5 Flash high; task version 2.0.0 26.8%
  44. 44 DeepSeek V4 Pro 0813 max; task version 2.0.0 26.8%
  45. 45 DeepSeek V4.1 Flash max; task version 2.1.0 26.8%
  46. 46 Mistral Large 4 Preview high 26.8%
  47. 47 Kimi K2.6 task version 2.0.0 25.6%
  48. 48 Grok 4.5 high; task version 2.0.0 24.4%
  49. 49 DeepSeek V4 Flash 0731 max; task version 2.0.0 24.4%
  50. 50 GPT-5 high; task version 2.0.0 21.9%
  51. 51 Gemini 3.6 Flash high; task version 2.0.0 21.9%
  52. 52 Gemini 3.8 Flash high; task version 2.0.0 21.9%
  53. 53 GPT-5 Pro high; task version 2.0.0 19.5%
  54. 54 Gemini 3 Flash task version 2.0.0 17.1%
  55. 55 Grok 4.20 17.1%
  56. 56 Inkling-Small xhigh; task version 2.0.0 17.1%
  57. 57 GLM-5.3-Flash max; task version 2.0.0 17.1%
  58. 58 Grok 4.7 xhigh; task version 2.0.0 17.1%
  59. 59 Grok 4.3 Beta high 14.6%
  60. 60 Grok 4.3 high; task version 2.0.0 14.6%
  61. 61 GPT-5 mini high; task version 2.0.0 12.2%
  62. 62 GPT-5.4 Nano high; task version 2.0.0 12.2%
  63. 63 Kimi K2.7 Code task version 2.0.0 12.2%
  64. 64 GPT-5.4 Mini xhigh 9.76%
  65. 65 o4-mini high 4.88%
  66. 66 Claude Opus 4.5 32k thinking 4.88%
  67. 67 Inkling xhigh 4.88%
  68. 68 Claude Opus 4.1 32K 2.44%
  69. 69 GPT-5 nano high 2.44%
  70. 70 Claude Sonnet 4.5 32k thinking 2.44%
  71. 71 DeepSeek-V4-Pro max 2.44%
  72. 72 GPT-5.5 Instant 2.44%
  73. 73 o3-mini high; task version 2.0.0 0%
  74. 74 Gemini 2.5 Pro Jun 2025, task version 2.0.0 0%
  75. 75 Gemini 3.5 Flash-Lite high; task version 2.0.0 0%

Sources: Official FrontierMath Tier 4 v2 leaderboard, labs’ model cards and Epoch AI runs (CC BY 4.0)

#EntryScoreSettingDateSource
1 GPT-6.1 Sol 100% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
2 Claude Fable 5.2 100% max; task version 2.1.0, Epoch Nov 2026 Official leaderboard
3 GPT-6 Astra 97.6% high; task version 2.0.0, Epoch Sep 2026 Official leaderboard
4 Gemini 4 Carbon 95.1% high; task version 2.1.0, Epoch Oct 2026 Official leaderboard
5 Claude Opus 5.5 95% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
6 GPT-6.1 Terra 92.7% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
7 Claude Fable 5 90.2% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
8 GPT-6 Sol 90% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
9 Claude Fable 5.1 87.8% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
10 GPT-5.6 Sol 82.9% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
11 gpt-5.6-sol_promax 80.5% task version 2.0.0, Epoch Jul 2026 Official leaderboard
12 Claude Sonnet 5.5 80.5% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
13 GPT-5.5 Pro 78% xhigh; task version 2.0.0, Epoch Apr 2026 Official leaderboard
14 Gemini 4 Argon 78% high; task version 2.1.0, Epoch Sep 2026 Official leaderboard
15 gdm-ai-co-mathematician 75.6% task version 2.0.0, Epoch Jun 2026 Official leaderboard
16 Claude Opus 5 73.2% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
17 GPT-5.5 72.5% xhigh; task version 2.0.0, Epoch Apr 2026 Official leaderboard
18 GPT-5.6 Terra 70.7% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
19 muse-wonder-1.0 70.7% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
20 kimi-k3.1-pro-together 65.8% max; task version 2.1.0, Epoch Nov 2026 Official leaderboard
21 GPT-5.6 Luna 61% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
22 GPT-5.4 Pro 58.5% xhigh; task version 2.0.0, Epoch Mar 2026 Official leaderboard
23 Claude Opus 4.8 56.1% max; task version 2.0.0, Epoch May 2026 Official leaderboard
24 GPT-6 Luna 56.1% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
25 GPT-5.4 49% xhigh; task version 2.0.0, Epoch Mar 2026 Official leaderboard
26 Qwen 3.8 Max 46.3% xhigh; task version 2.0.0, Epoch Aug 2026 Official leaderboard
27 Muse Spark 1.3 46.3% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
28 Claude Haiku 5.5 46.3% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
29 DeepSeek V4.1 Flash 1017 46.3% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
30 GPT-5.2 Pro 46% xhigh; task version 2.0.0, Epoch Dec 2025 Official leaderboard
31 Kimi K3 39% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
32 Gemini 3.7 Flash 36.6% high; task version 2.0.0, Epoch Aug 2026 Official leaderboard
33 Qwen3.7-Max 34.1% task version 2.0.0, Epoch May 2026 Official leaderboard
34 Qwen3.8 Max (0902) 34.1% xhigh; task version 2.0.0, Epoch Sep 2026 Official leaderboard
35 Claude Opus 4.7 31.7% max; task version 2.0.0, Epoch Apr 2026 Official leaderboard
36 Grok 4.6 31.7% xhigh; task version 2.0.0, Epoch Aug 2026 Official leaderboard
37 Muse-Spark-Open-816B-A42B 31.7% xhigh; task version 2.1.0, Epoch Oct 2026 Official leaderboard
38 GPT-5.2 31.7% xhigh; task version 2.0.0, Epoch Dec 2025 Official leaderboard
39 GLM-5.2 29.3% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
40 Claude Sonnet 5 29.3% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
41 GLM-5.3 29.3% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
42 Claude Opus 4.6 26.8% max; task version 2.0.0, Epoch Feb 2026 Official leaderboard
43 Gemini 3.1 Pro 26.8% task version 2.0.0, Epoch Feb 2026 Official leaderboard
44 Gemini 3.5 Flash 26.8% high; task version 2.0.0, Epoch May 2026 Official leaderboard
45 DeepSeek V4 Pro 0813 26.8% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
46 DeepSeek V4.1 Flash 26.8% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
47 mistral-large-4-0 26.8% high; task version 2.1.0, Epoch Oct 2026 Official leaderboard
48 Kimi K2.6 25.6% task version 2.0.0, Epoch Apr 2026 Official leaderboard
49 Grok 4.5 24.4% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
50 DeepSeek V4 Flash 0731 24.4% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
51 GPT-5 21.9% high; task version 2.0.0, Epoch Aug 2025 Official leaderboard
52 Gemini 3.6 Flash 21.9% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
53 Gemini 3.8 Flash 21.9% high; task version 2.0.0, Epoch Sep 2026 Official leaderboard
54 GPT-5 Pro 19.5% high; task version 2.0.0, Epoch Oct 2025 Official leaderboard
55 Gemini 3 Flash 17.1% task version 2.0.0, Epoch Dec 2025 Official leaderboard
56 grok-4.20-0309-reasoning 17.1% task version 2.0.0, Epoch Jul 2026 Official leaderboard
57 Inkling-Small 17.1% xhigh; task version 2.0.0, Epoch Jul 2026 Official leaderboard
58 GLM-5.3-Flash 17.1% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
59 Grok 4.7 17.1% xhigh; task version 2.0.0, Epoch Sep 2026 Official leaderboard
60 Grok 4.3 14.6% high; task version 2.0.0, Epoch Apr 2026 Official leaderboard
61 GPT-5 mini 12.2% high; task version 2.0.0, Epoch Aug 2025 Official leaderboard
62 GPT-5.4 Nano 12.2% high; task version 2.0.0, Epoch Mar 2026 Official leaderboard
63 Kimi K2.7 Code 12.2% task version 2.0.0, Epoch Jun 2026 Official leaderboard
64 GPT-5.4 Mini 9.76% xhigh; task version 2.0.0, Epoch Mar 2026 Official leaderboard
65 o4-mini 4.88% high; task version 2.0.0, Epoch Apr 2025 Official leaderboard
66 Claude Opus 4.5 4.88% 32K; task version 2.0.0, Epoch Nov 2025 Official leaderboard
67 Inkling 4.88% xhigh; task version 2.0.0, Epoch Jul 2026 Official leaderboard
68 Claude Opus 4.1 2.44% 32K; task version 2.0.0, Epoch Aug 2025 Official leaderboard
69 GPT-5 nano 2.44% high; task version 2.0.0, Epoch Aug 2025 Official leaderboard
70 Claude Sonnet 4.5 2.44% 32K; task version 2.0.0, Epoch Sep 2025 Official leaderboard
71 DeepSeek-V4-Pro 2.44% max; task version 2.0.0, Epoch Apr 2026 Official leaderboard
72 GPT-5.5 Instant 2.44% task version 2.0.0, Epoch May 2026 Official leaderboard
73 o3-mini 0% high; task version 2.0.0, Epoch Jan 2025 Official leaderboard
74 Gemini 2.5 Pro Jun 2025 0% task version 2.0.0, Epoch Jun 2025 Official leaderboard
75 Gemini 3.5 Flash-Lite 0% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
#ModelScoreSettingDateSource
1 GPT-6.1 Sol 100% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
2 Claude Fable 5.2 100% max; task version 2.1.0, Epoch Nov 2026 Official leaderboard
3 GPT-6 Astra 97.6% high; task version 2.0.0, Epoch Sep 2026 Official leaderboard
4 Gemini 4 Carbon 95.1% high; task version 2.1.0, Epoch Oct 2026 Official leaderboard
5 Claude Opus 5.5 95% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
6 GPT-6.1 Terra 92.7% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
7 Claude Fable 5 90.2% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
8 GPT-6 Sol 90% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
9 Claude Fable 5.1 87.8% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
10 GPT-5.6 Sol 82.9% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
11 Claude Sonnet 5.5 80.5% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
12 GPT-5.5 Pro 78% xhigh; task version 2.0.0, Epoch Apr 2026 Official leaderboard
13 Gemini 4 Argon 78% high; task version 2.1.0, Epoch Sep 2026 Official leaderboard
14 AI Co-Mathematician 75.6% May 2026 Epoch AI run
15 Claude Opus 5 73.2% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
16 GPT-5.5 72.5% xhigh; task version 2.0.0, Epoch Apr 2026 Official leaderboard
17 GPT-5.6 Terra 70.7% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
18 Muse Wonder 70.7% max Oct 2026 Epoch AI run
19 Kimi K3.1 Pro 65.8% Together, max Oct 2026 Epoch AI run
20 GPT-5.6 Luna 61% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
21 GPT-5.4 Pro 58.5% xhigh; task version 2.0.0, Epoch Mar 2026 Official leaderboard
22 Claude Opus 4.8 56.1% max; task version 2.0.0, Epoch May 2026 Official leaderboard
23 GPT-6 Luna 56.1% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
24 GPT-5.4 49% xhigh; task version 2.0.0, Epoch Mar 2026 Official leaderboard
25 Qwen 3.8 Max 46.3% xhigh; task version 2.0.0, Epoch Aug 2026 Official leaderboard
26 Muse Spark 1.3 46.3% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
27 Claude Haiku 5.5 46.3% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
28 DeepSeek V4.1 Flash 1017 46.3% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
29 GPT-5.2 Pro 46% xhigh; task version 2.0.0, Epoch Dec 2025 Official leaderboard
30 Kimi K3 39% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
31 Gemini 3.7 Flash 36.6% high; task version 2.0.0, Epoch Aug 2026 Official leaderboard
32 Qwen3.7-Max 34.1% task version 2.0.0, Epoch May 2026 Official leaderboard
33 Qwen3.8 Max (0902) 34.1% xhigh; task version 2.0.0, Epoch Sep 2026 Official leaderboard
34 Claude Opus 4.7 31.7% max; task version 2.0.0, Epoch Apr 2026 Official leaderboard
35 Grok 4.6 31.7% xhigh; task version 2.0.0, Epoch Aug 2026 Official leaderboard
36 Muse Spark Open 31.7% xhigh Oct 2026 Epoch AI run
37 GPT-5.2 31.7% xhigh; task version 2.0.0, Epoch Dec 2025 Official leaderboard
38 GLM-5.2 29.3% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
39 Claude Sonnet 5 29.3% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
40 GLM-5.3 29.3% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
41 Claude Opus 4.6 26.8% max; task version 2.0.0, Epoch Feb 2026 Official leaderboard
42 Gemini 3.1 Pro 26.8% task version 2.0.0, Epoch Feb 2026 Official leaderboard
43 Gemini 3.5 Flash 26.8% high; task version 2.0.0, Epoch May 2026 Official leaderboard
44 DeepSeek V4 Pro 0813 26.8% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
45 DeepSeek V4.1 Flash 26.8% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
46 Mistral Large 4 Preview 26.8% high Oct 2026 Epoch AI run
47 Kimi K2.6 25.6% task version 2.0.0, Epoch Apr 2026 Official leaderboard
48 Grok 4.5 24.4% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
49 DeepSeek V4 Flash 0731 24.4% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
50 GPT-5 21.9% high; task version 2.0.0, Epoch Aug 2025 Official leaderboard
51 Gemini 3.6 Flash 21.9% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
52 Gemini 3.8 Flash 21.9% high; task version 2.0.0, Epoch Sep 2026 Official leaderboard
53 GPT-5 Pro 19.5% high; task version 2.0.0, Epoch Oct 2025 Official leaderboard
54 Gemini 3 Flash 17.1% task version 2.0.0, Epoch Dec 2025 Official leaderboard
55 Grok 4.20 17.1% Feb 2026 Epoch AI run
56 Inkling-Small 17.1% xhigh; task version 2.0.0, Epoch Jul 2026 Official leaderboard
57 GLM-5.3-Flash 17.1% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
58 Grok 4.7 17.1% xhigh; task version 2.0.0, Epoch Sep 2026 Official leaderboard
59 Grok 4.3 Beta 14.6% high Apr 2026 Epoch AI run
60 Grok 4.3 14.6% high; task version 2.0.0, Epoch Apr 2026 Official leaderboard
61 GPT-5 mini 12.2% high; task version 2.0.0, Epoch Aug 2025 Official leaderboard
62 GPT-5.4 Nano 12.2% high; task version 2.0.0, Epoch Mar 2026 Official leaderboard
63 Kimi K2.7 Code 12.2% task version 2.0.0, Epoch Jun 2026 Official leaderboard
64 GPT-5.4 Mini 9.76% xhigh Mar 2026 Epoch AI run
65 o4-mini 4.88% high Apr 2025 Epoch AI run
66 Claude Opus 4.5 4.88% 32k thinking Nov 2025 Epoch AI run
67 Inkling 4.88% xhigh Jul 2026 Epoch AI run
68 Claude Opus 4.1 2.44% 32K Aug 2025 Epoch AI run
69 GPT-5 nano 2.44% high Aug 2025 Epoch AI run
70 Claude Sonnet 4.5 2.44% 32k thinking Sep 2025 Epoch AI run
71 DeepSeek-V4-Pro 2.44% max Apr 2026 Epoch AI run
72 GPT-5.5 Instant 2.44% May 2026 Epoch AI run
73 o3-mini 0% high; task version 2.0.0, Epoch Jan 2025 Official leaderboard
74 Gemini 2.5 Pro Jun 2025 0% task version 2.0.0, Epoch Jun 2025 Official leaderboard
75 Gemini 3.5 Flash-Lite 0% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
#ModelScoreSettingDateSource
1 GPT-6.1 Sol 100% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
2 Claude Fable 5.2 100% max; task version 2.1.0, Epoch Nov 2026 Official leaderboard
3 GPT-6 Astra 97.6% high; task version 2.0.0, Epoch Sep 2026 Official leaderboard
4 Gemini 4 Carbon 95.1% high; task version 2.1.0, Epoch Oct 2026 Official leaderboard
5 Claude Opus 5.5 95% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
6 GPT-6.1 Terra 92.7% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
7 Claude Fable 5 90.2% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
8 GPT-6 Sol 90% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
9 Claude Fable 5.1 87.8% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
10 GPT-5.6 Sol 83% Jul 2026 Lab model card
11 Claude Sonnet 5.5 80.5% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
12 GPT-5.5 Pro 78% xhigh; task version 2.0.0, Epoch Apr 2026 Official leaderboard
13 Gemini 4 Argon 78% high; task version 2.1.0, Epoch Sep 2026 Official leaderboard
14 AI Co-Mathematician 75.6% May 2026 Epoch AI run
15 Claude Opus 5 73.2% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
16 GPT-5.5 72.5% xhigh; task version 2.0.0, Epoch Apr 2026 Official leaderboard
17 GPT-5.6 Terra 70.7% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
18 Muse Wonder 70.7% max Oct 2026 Epoch AI run
19 Kimi K3.1 Pro 65.8% Together, max Oct 2026 Epoch AI run
20 GPT-5.6 Luna 61% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
21 GPT-5.4 Pro 58.5% xhigh; task version 2.0.0, Epoch Mar 2026 Official leaderboard
22 Claude Opus 4.8 56.1% max; task version 2.0.0, Epoch May 2026 Official leaderboard
23 GPT-6 Luna 56.1% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
24 GPT-5.4 49% xhigh; task version 2.0.0, Epoch Mar 2026 Official leaderboard
25 Qwen 3.8 Max 46.3% xhigh; task version 2.0.0, Epoch Aug 2026 Official leaderboard
26 Muse Spark 1.3 46.3% max; task version 2.0.0, Epoch Sep 2026 Official leaderboard
27 Claude Haiku 5.5 46.3% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
28 DeepSeek V4.1 Flash 1017 46.3% max; task version 2.1.0, Epoch Oct 2026 Official leaderboard
29 GPT-5.2 Pro 46% xhigh; task version 2.0.0, Epoch Dec 2025 Official leaderboard
30 Kimi K3 39% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
31 Gemini 3.7 Flash 36.6% high; task version 2.0.0, Epoch Aug 2026 Official leaderboard
32 Qwen3.7-Max 34.1% task version 2.0.0, Epoch May 2026 Official leaderboard
33 Qwen3.8 Max (0902) 34.1% xhigh; task version 2.0.0, Epoch Sep 2026 Official leaderboard
34 Claude Opus 4.7 31.7% max; task version 2.0.0, Epoch Apr 2026 Official leaderboard
35 Grok 4.6 31.7% xhigh; task version 2.0.0, Epoch Aug 2026 Official leaderboard
36 Muse Spark Open 31.7% xhigh Oct 2026 Epoch AI run
37 GPT-5.2 31.7% xhigh; task version 2.0.0, Epoch Dec 2025 Official leaderboard
38 GLM-5.2 29.3% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
39 Claude Sonnet 5 29.3% max; task version 2.0.0, Epoch Jun 2026 Official leaderboard
40 GLM-5.3 29.3% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
41 Claude Opus 4.6 26.8% max; task version 2.0.0, Epoch Feb 2026 Official leaderboard
42 Gemini 3.1 Pro 26.8% task version 2.0.0, Epoch Feb 2026 Official leaderboard
43 Gemini 3.5 Flash 26.8% high; task version 2.0.0, Epoch May 2026 Official leaderboard
44 DeepSeek V4 Pro 0813 26.8% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
45 DeepSeek V4.1 Flash 26.8% max; task version 2.1.0, Epoch Sep 2026 Official leaderboard
46 Mistral Large 4 Preview 26.8% high Oct 2026 Epoch AI run
47 Kimi K2.6 25.6% task version 2.0.0, Epoch Apr 2026 Official leaderboard
48 Grok 4.5 24.4% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
49 DeepSeek V4 Flash 0731 24.4% max; task version 2.0.0, Epoch Jul 2026 Official leaderboard
50 GPT-5 21.9% high; task version 2.0.0, Epoch Aug 2025 Official leaderboard
51 Gemini 3.6 Flash 21.9% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard
52 Gemini 3.8 Flash 21.9% high; task version 2.0.0, Epoch Sep 2026 Official leaderboard
53 GPT-5 Pro 19.5% high; task version 2.0.0, Epoch Oct 2025 Official leaderboard
54 Gemini 3 Flash 17.1% task version 2.0.0, Epoch Dec 2025 Official leaderboard
55 Grok 4.20 17.1% Feb 2026 Epoch AI run
56 Inkling-Small 17.1% xhigh; task version 2.0.0, Epoch Jul 2026 Official leaderboard
57 GLM-5.3-Flash 17.1% max; task version 2.0.0, Epoch Aug 2026 Official leaderboard
58 Grok 4.7 17.1% xhigh; task version 2.0.0, Epoch Sep 2026 Official leaderboard
59 Grok 4.3 Beta 14.6% high Apr 2026 Epoch AI run
60 Grok 4.3 14.6% high; task version 2.0.0, Epoch Apr 2026 Official leaderboard
61 GPT-5 mini 12.2% high; task version 2.0.0, Epoch Aug 2025 Official leaderboard
62 GPT-5.4 Nano 12.2% high; task version 2.0.0, Epoch Mar 2026 Official leaderboard
63 Kimi K2.7 Code 12.2% task version 2.0.0, Epoch Jun 2026 Official leaderboard
64 GPT-5.4 Mini 9.76% xhigh Mar 2026 Epoch AI run
65 o4-mini 4.88% high Apr 2025 Epoch AI run
66 Claude Opus 4.5 4.88% 32k thinking Nov 2025 Epoch AI run
67 Inkling 4.88% xhigh Jul 2026 Epoch AI run
68 Claude Opus 4.1 2.44% 32K Aug 2025 Epoch AI run
69 GPT-5 nano 2.44% high Aug 2025 Epoch AI run
70 Claude Sonnet 4.5 2.44% 32k thinking Sep 2025 Epoch AI run
71 DeepSeek-V4-Pro 2.44% max Apr 2026 Epoch AI run
72 GPT-5.5 Instant 2.44% May 2026 Epoch AI run
73 o3-mini 0% high; task version 2.0.0, Epoch Jan 2025 Official leaderboard
74 Gemini 2.5 Pro Jun 2025 0% task version 2.0.0, Epoch Jun 2025 Official leaderboard
75 Gemini 3.5 Flash-Lite 0% high; task version 2.0.0, Epoch Jul 2026 Official leaderboard

Epoch AI has run 74 models. Labs report scores for 3 models in their cards. Switch the scores above to rank them together.

4 models have held number one on the official leaderboard since its release in June 2026 4 models have held number one across all independent runs since its release in June 2026 4 models have held number one with claims included since its release in June 2026

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, Epoch AI’s runs and what labs claim in their cards.

OpenAI Anthropic
Own leaderboard Passed 85% in Jun 2026, by Claude Fable 5
Epoch AI runs Passed 85% in Jun 2026, by Claude Fable 5
Lab claims Not tested since Jul 2026

Sources: Official FrontierMath Tier 4 v2 leaderboard, Epoch AI runs (CC BY 4.0) and labs’ model cards

Claude Fable 5 on the official leaderboard passed 85% in June 2026

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 Run by Epoch AI Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2025 2026 2027 Near the ceiling (85%) GPT-6.1 Sol Claude Fable 5 GPT-5.5 Pro GPT-5.4 Pro GPT-5.2 Pro GPT-5 o4-mini 0% 20% 40% 60% 80% 100% 2025 2026 2027 Near the ceiling (85%) GPT-6.1 Sol Claude Fable 5

Sources: Official FrontierMath Tier 4 v2 leaderboard, Epoch AI runs (CC BY 4.0) and labs’ model cards

One lab put it in a launch post in the last six months

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.

OpenAI
DateLaunch postScoreAs the post writes it
Jul 9, 2026 GPT-5.6 Luna 58.5 FrontierMath Tier 4 (v2)
Jul 9, 2026 GPT-5.6 Terra 68.3 FrontierMath Tier 4 (v2)
Jul 9, 2026 GPT-5.6 Sol 83 FrontierMath Tier 4 (v2)

The lab's number comes out ahead in 0 of 2 pairs that differ

Each score a lab reported for its own model, beside the same model's best score on the leaderboard. Gaps mostly come from different harnesses, effort levels and task subsets. 1 of them match, which usually means one side copied the other. Every benchmark.

Model Lab says Board says Gap
GPT-5.6 Luna 58.5% FrontierMath Tier 4 (v2) 61% Leaderboard, max; task version 2.0.0, Epoch −2.5 pts
GPT-5.6 Terra 68.3% FrontierMath Tier 4 (v2) 70.7% Leaderboard, max; task version 2.0.0, Epoch −2.4 pts
GPT-5.6 Sol 83% FrontierMath Tier 4 (v2) 82.9% Leaderboard, max; task version 2.0.0, Epoch Same

Versions

We switch the top row to each new version when it comes out. Open it for one row per version. An old version stays in play while people still test it, so whoever first takes it past 85% gets credit for closing it out.

OpenAI Google DeepMind Anthropic
FrontierMath Tier 4 v2 Passed 85% in Jun 2026, by Claude Fable 5
FrontierMath Tier 4 Replaced by v2, Jun 2026
AI Co-Mathematician 47.9%
FrontierMath Tier 4 v2 Passed 85% in Jun 2026, by Claude Fable 5

Sources: Official leaderboards and Epoch AI runs (CC BY 4.0)

More in Math

All 113 in Math
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  • IMO-AnswerBench In use 400 olympiad problems with short verifiable answers, robustified against memorization. Scored by answer match. GLM-5.2 91%
  • HMMT 2026 In use Models solve the 33 final-answer problems from the February 2026 Harvard-MIT Mathematics Tournament. Scored by exact answer match. GPT-5.5 98.5%
  • PolyMath In use Models solve 9,000 parallel math problems in 18 languages across four difficulty levels, from school math to frontier math. Final answers are checked. Qwen3.7-Max 86.5%
  • MathArena (Apex, IMO, USAMO) In use Evaluates models on newly released math competitions after release. Final-answer or human/LLM-judged proof scores. Claude Opus 4.8 81.3%
  • MathArena Apex Shortlist In use Models solve 47 hard final-answer problems that MathArena selected from 2025 competitions, where the best models scored about 50% at selection. Scored by accuracy over repeated attempts. GPT-5.5 98.4%