FrontierMath Tier 4
Models solve research-level math problems that take experts days, submitting answers through a Python function. Each answer is verified automatically as correct or incorrect.
OpenAI funded FrontierMath and can access part of it, and a June 2026 v2 corrected 12 Tier 4 problems and removed 7.
- Made by
- Epoch AI
- Released
- July 2025
- Kind
- Research mathematics
- Level
- Research frontier
- Scored
- Checked automatically
- Answers
- Short answer
- Tasks
- Public, plus a private test set
- Strongest model tested
- GPT-6 Astra #3 on the capability index
- Last in a launch post
- September 2026, dropped after it saturated
- Last model added
- September 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 FrontierMath uses new, unpublished problems and automated verification to reliably evaluate models while minimizing risk of data contamination.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.
AI Co-Mathematician leads with 47.9% among models released by May 2026
Best score per model from Epoch AI’s own runs. Where a model ran with several settings or harnesses, we keep its best.
GPT-6 Astra leads with 97.6%, 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.
The newest model with a score here came out in May 2026, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:
- Claude Fable 5.2
-
Gemini 4 Carbon
- GPT-6 Astra
- Claude Opus 5.5
- and 13 more
One of them reports a score in its own model card. We plot lab claims in the charts below.
- 47.9
AI Co-Mathematician
- 39.6 GPT-5.5 Pro
- 37.5 GPT-5.4 Pro
- 35.4 GPT-5.5
- 31.3 GPT-5.2 Pro
- 31.3 Claude Opus 4.8
- 27.1 GPT-5.4
- 22.9 Claude Opus 4.7
- 22.9 Claude Opus 4.6
- 18.8 GPT-5.2
- 18.8
Gemini 3 Pro
- 16.7
Gemini 3.1 Pro
- 14.6 GPT-5 Pro
- 14.6
Muse Spark
- 14.6 Kimi K2.6
- 14.6
Gemini 3.5 Flash
- 12.5 GPT-5
- 12.5 GPT-5.1
- 12.5 GLM-5.1
- 10.4
Gemini 2.5 Deep Think
- 8.33
Qwen 3.6 Plus
- 8.30 Claude Sonnet 4.6
- 6.25 o4-mini
- 6.25 GPT-5 mini
- 6.25 GPT-5.4 Nano
- 4.20 Kimi K2.5
- 4.17 o3-mini
- 4.17 Claude Opus 4
- 4.17
Gemini 2.5 Pro
- 4.17
Gemini 2.5 Flash
- 4.17 Claude Opus 4.1
- 4.17 Claude Sonnet 4.5
- 4.17 Claude Opus 4.5
- 4.17
Gemini 3 Flash
- 4.17
Qwen 3.6 Max (Preview)
- 2.13 GLM-4.6
- 2.10
DeepSeek-V3.2
- 2.10 GLM-5
- 2.08 o3
- 2.08 Grok 4
- 2.08 Grok 4 Heavy
- 2.08 GPT-5 nano
- 2.08 Claude Haiku 4.5
- 2.08
Qwen 3.5 Plus (hosted 397B-A17B)
- 2.08 GPT-5.4 Mini
- 0.0 Claude 3.5 Sonnet
- 0.0 Claude 3.5 Sonnet (October 2024)
- 0.0 Grok 3
- 0.0 GPT-4.1
- 0.0 Claude Sonnet 4
- 0.0
Qwen3-235B-A22B-Thinking
- 0.0 Kimi K2 Thinking
- 0.0 GLM-4.7
- 0.0
Qwen 3.5 Flash (hosted 35B-A3B)
- 0.0
Qwen 3.6 Flash
- 1
AI Co-Mathematician 47.9%
- 2 GPT-5.5 Pro xhigh 39.6%
- 3 GPT-5.4 Pro web 37.5%
- 4 GPT-5.5 xhigh 35.4%
- 5 GPT-5.2 Pro web 31.3%
- 6 Claude Opus 4.8 max 31.3%
- 7 GPT-5.4 xhigh 27.1%
- 8 Claude Opus 4.7 xhigh 22.9%
- 9 Claude Opus 4.6 max 22.9%
- 10 GPT-5.2 xhigh 18.8%
- 11
Gemini 3 Pro 18.8%
- 12
Gemini 3.1 Pro 16.7%
- 13 GPT-5 Pro high 14.6%
- 14
Muse Spark 14.6%
- 15 Kimi K2.6 14.6%
- 16
Gemini 3.5 Flash high 14.6%
- 17 GPT-5 high 12.5%
- 18 GPT-5.1 high 12.5%
- 19 GLM-5.1 12.5%
- 20
Gemini 2.5 Deep Think 10.4%
- 21
Qwen 3.6 Plus 2026-04-02 8.33%
- 22 Claude Sonnet 4.6 16k thinking 8.30%
- 23 o4-mini high 6.25%
- 24 GPT-5 mini high 6.25%
- 25 GPT-5.4 Nano high 6.25%
- 26 Kimi K2.5 Fireworks 4.20%
- 27 o3-mini high 4.17%
- 28 Claude Opus 4 27K 4.17%
- 29
Gemini 2.5 Pro Jun 2025 4.17%
- 30
Gemini 2.5 Flash Jun 2025 4.17%
- 31 Claude Opus 4.1 27K 4.17%
- 32 Claude Sonnet 4.5 32k thinking 4.17%
- 33 Claude Opus 4.5 no thinking 4.17%
- 34
Gemini 3 Flash 4.17%
- 35
Qwen 3.6 Max (Preview) 4.17%
- 36 GLM-4.6 Together 2.13%
- 37
DeepSeek-V3.2 Thinking; Fireworks 2.10%
- 38 GLM-5 2.10%
- 39 o3 high 2.08%
- 40 Grok 4 2.08%
- 41 Grok 4 Heavy web app 2.08%
- 42 GPT-5 nano medium 2.08%
- 43 Claude Haiku 4.5 32K 2.08%
- 44
Qwen 3.5 Plus (hosted 397B-A17B) 2.08%
- 45 GPT-5.4 Mini high 2.08%
- 46 Claude 3.5 Sonnet Jun 2024 0%
- 47 Claude 3.5 Sonnet (October 2024) 0%
- 48 Grok 3 0%
- 49 GPT-4.1 0%
- 50 Claude Sonnet 4 0%
- 51
Qwen3-235B-A22B-Thinking Jul 2025 0%
- 52 Kimi K2 Thinking Together 0%
- 53 GLM-4.7 Together 0%
- 54
Qwen 3.5 Flash (hosted 35B-A3B) 0%
- 55
Qwen 3.6 Flash 2026-04-16 0%
Source: Epoch AI runs (CC BY 4.0)
- 97.6 GPT-6 Astra
- 47.9
AI Co-Mathematician
- 39.6 GPT-5.5 Pro
- 39.6 GPT-5.5
- 38.0 GPT-5.4 Pro
- 31.3 GPT-5.2 Pro
- 31.3 Claude Opus 4.8
- 27.1 GPT-5.4
- 22.9 Claude Opus 4.7
- 22.9 Claude Opus 4.6
- 18.8 GPT-5.2
- 18.8
Gemini 3 Pro
- 16.7
Gemini 3.1 Pro
- 14.6 GPT-5 Pro
- 14.6
Muse Spark
- 14.6 Kimi K2.6
- 14.6
Gemini 3.5 Flash
- 12.5 GPT-5
- 12.5 GPT-5.1
- 12.5 GLM-5.1
- 10.4
Gemini 2.5 Deep Think
- 8.33
Qwen 3.6 Plus
- 8.30 Claude Sonnet 4.6
- 6.25 o4-mini
- 6.25 GPT-5 mini
- 6.25 GPT-5.4 Nano
- 4.20 Kimi K2.5
- 4.17 o3-mini
- 4.17 Claude Opus 4
- 4.17
Gemini 2.5 Pro
- 4.17
Gemini 2.5 Flash
- 4.17 Claude Opus 4.1
- 4.17 Claude Sonnet 4.5
- 4.17 Claude Opus 4.5
- 4.17
Gemini 3 Flash
- 4.17
Qwen 3.6 Max (Preview)
- 2.13 GLM-4.6
- 2.10
DeepSeek-V3.2
- 2.10 GLM-5
- 2.08 o3
- 2.08 Grok 4
- 2.08 Grok 4 Heavy
- 2.08 GPT-5 nano
- 2.08 Claude Haiku 4.5
- 2.08
Qwen 3.5 Plus (hosted 397B-A17B)
- 2.08 GPT-5.4 Mini
- 0.0 Claude 3.5 Sonnet
- 0.0 Claude 3.5 Sonnet (October 2024)
- 0.0 Grok 3
- 0.0 GPT-4.1
- 0.0 Claude Sonnet 4
- 0.0
Qwen3-235B-A22B-Thinking
- 0.0 Kimi K2 Thinking
- 0.0 GLM-4.7
- 0.0
Qwen 3.5 Flash (hosted 35B-A3B)
- 0.0
Qwen 3.6 Flash
- 1 GPT-6 Astra 97.6%
- 2
AI Co-Mathematician 47.9%
- 3 GPT-5.5 Pro xhigh 39.6%
- 4 GPT-5.5 39.6%
- 5 GPT-5.4 Pro 38%
- 6 GPT-5.2 Pro web 31.3%
- 7 Claude Opus 4.8 max 31.3%
- 8 GPT-5.4 xhigh 27.1%
- 9 Claude Opus 4.7 xhigh 22.9%
- 10 Claude Opus 4.6 max 22.9%
- 11 GPT-5.2 xhigh 18.8%
- 12
Gemini 3 Pro 18.8%
- 13
Gemini 3.1 Pro 16.7%
- 14 GPT-5 Pro high 14.6%
- 15
Muse Spark 14.6%
- 16 Kimi K2.6 14.6%
- 17
Gemini 3.5 Flash high 14.6%
- 18 GPT-5 high 12.5%
- 19 GPT-5.1 high 12.5%
- 20 GLM-5.1 12.5%
- 21
Gemini 2.5 Deep Think 10.4%
- 22
Qwen 3.6 Plus 2026-04-02 8.33%
- 23 Claude Sonnet 4.6 16k thinking 8.30%
- 24 o4-mini high 6.25%
- 25 GPT-5 mini high 6.25%
- 26 GPT-5.4 Nano high 6.25%
- 27 Kimi K2.5 Fireworks 4.20%
- 28 o3-mini high 4.17%
- 29 Claude Opus 4 27K 4.17%
- 30
Gemini 2.5 Pro Jun 2025 4.17%
- 31
Gemini 2.5 Flash Jun 2025 4.17%
- 32 Claude Opus 4.1 27K 4.17%
- 33 Claude Sonnet 4.5 32k thinking 4.17%
- 34 Claude Opus 4.5 no thinking 4.17%
- 35
Gemini 3 Flash 4.17%
- 36
Qwen 3.6 Max (Preview) 4.17%
- 37 GLM-4.6 Together 2.13%
- 38
DeepSeek-V3.2 Thinking; Fireworks 2.10%
- 39 GLM-5 2.10%
- 40 o3 high 2.08%
- 41 Grok 4 2.08%
- 42 Grok 4 Heavy web app 2.08%
- 43 GPT-5 nano medium 2.08%
- 44 Claude Haiku 4.5 32K 2.08%
- 45
Qwen 3.5 Plus (hosted 397B-A17B) 2.08%
- 46 GPT-5.4 Mini high 2.08%
- 47 Claude 3.5 Sonnet Jun 2024 0%
- 48 Claude 3.5 Sonnet (October 2024) 0%
- 49 Grok 3 0%
- 50 GPT-4.1 0%
- 51 Claude Sonnet 4 0%
- 52
Qwen3-235B-A22B-Thinking Jul 2025 0%
- 53 Kimi K2 Thinking Together 0%
- 54 GLM-4.7 Together 0%
- 55
Qwen 3.5 Flash (hosted 35B-A3B) 0%
- 56
Qwen 3.6 Flash 2026-04-16 0%
Sources: Labs’ model cards and Epoch AI runs (CC BY 4.0)
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | | 47.9% | May 2026 | Epoch AI run | |
| 2 | GPT-5.5 Pro | 39.6% | xhigh | Apr 2026 | Epoch AI run |
| 3 | GPT-5.4 Pro | 37.5% | web | Mar 2026 | Epoch AI run |
| 4 | GPT-5.5 | 35.4% | xhigh | Apr 2026 | Epoch AI run |
| 5 | GPT-5.2 Pro | 31.3% | web | Dec 2025 | Epoch AI run |
| 6 | Claude Opus 4.8 | 31.3% | max | May 2026 | Epoch AI run |
| 7 | GPT-5.4 | 27.1% | xhigh | Mar 2026 | Epoch AI run |
| 8 | Claude Opus 4.7 | 22.9% | xhigh | Apr 2026 | Epoch AI run |
| 9 | Claude Opus 4.6 | 22.9% | max | Feb 2026 | Epoch AI run |
| 10 | GPT-5.2 | 18.8% | xhigh | Dec 2025 | Epoch AI run |
| 11 | | 18.8% | Nov 2025 | Epoch AI run | |
| 12 | | 16.7% | Feb 2026 | Epoch AI run | |
| 13 | GPT-5 Pro | 14.6% | high | Oct 2025 | Epoch AI run |
| 14 | | 14.6% | Apr 2026 | Epoch AI run | |
| 15 | Kimi K2.6 | 14.6% | Apr 2026 | Epoch AI run | |
| 16 | | 14.6% | high | May 2026 | Epoch AI run |
| 17 | GPT-5 | 12.5% | high | Aug 2025 | Epoch AI run |
| 18 | GPT-5.1 | 12.5% | high | Nov 2025 | Epoch AI run |
| 19 | GLM-5.1 | 12.5% | Apr 2026 | Epoch AI run | |
| 20 | | 10.4% | Aug 2025 | Epoch AI run | |
| 21 | | 8.33% | 2026-04-02 | Mar 2026 | Epoch AI run |
| 22 | Claude Sonnet 4.6 | 8.30% | 16k thinking | Feb 2026 | Epoch AI run |
| 23 | o4-mini | 6.25% | high | Apr 2025 | Epoch AI run |
| 24 | GPT-5 mini | 6.25% | high | Aug 2025 | Epoch AI run |
| 25 | GPT-5.4 Nano | 6.25% | high | Mar 2026 | Epoch AI run |
| 26 | Kimi K2.5 | 4.20% | Fireworks | Jan 2026 | Epoch AI run |
| 27 | o3-mini | 4.17% | high | Jan 2025 | Epoch AI run |
| 28 | Claude Opus 4 | 4.17% | 27K | May 2025 | Epoch AI run |
| 29 | | 4.17% | Jun 2025 | Epoch AI run | |
| 30 | | 4.17% | Jun 2025 | Epoch AI run | |
| 31 | Claude Opus 4.1 | 4.17% | 27K | Aug 2025 | Epoch AI run |
| 32 | Claude Sonnet 4.5 | 4.17% | 32k thinking | Sep 2025 | Epoch AI run |
| 33 | Claude Opus 4.5 | 4.17% | no thinking | Nov 2025 | Epoch AI run |
| 34 | | 4.17% | Dec 2025 | Epoch AI run | |
| 35 | | 4.17% | Apr 2026 | Epoch AI run | |
| 36 | GLM-4.6 | 2.13% | Together | Sep 2025 | Epoch AI run |
| 37 | | 2.10% | Thinking; Fireworks | Dec 2025 | Epoch AI run |
| 38 | GLM-5 | 2.10% | Feb 2026 | Epoch AI run | |
| 39 | o3 | 2.08% | high | Apr 2025 | Epoch AI run |
| 40 | Grok 4 | 2.08% | Jul 2025 | Epoch AI run | |
| 41 | Grok 4 Heavy | 2.08% | web app | Jul 2025 | Epoch AI run |
| 42 | GPT-5 nano | 2.08% | medium | Aug 2025 | Epoch AI run |
| 43 | Claude Haiku 4.5 | 2.08% | 32K | Oct 2025 | Epoch AI run |
| 44 | | 2.08% | Feb 2026 | Epoch AI run | |
| 45 | GPT-5.4 Mini | 2.08% | high | Mar 2026 | Epoch AI run |
| 46 | Claude 3.5 Sonnet | 0% | Jun 2024 | Jun 2024 | Epoch AI run |
| 47 | Claude 3.5 Sonnet (October 2024) | 0% | Oct 2024 | Epoch AI run | |
| 48 | Grok 3 | 0% | Apr 2025 | Epoch AI run | |
| 49 | GPT-4.1 | 0% | Apr 2025 | Epoch AI run | |
| 50 | Claude Sonnet 4 | 0% | May 2025 | Epoch AI run | |
| 51 | | 0% | Jul 2025 | Epoch AI run | |
| 52 | Kimi K2 Thinking | 0% | Together | Nov 2025 | Epoch AI run |
| 53 | GLM-4.7 | 0% | Together | Dec 2025 | Epoch AI run |
| 54 | | 0% | Feb 2026 | Epoch AI run | |
| 55 | | 0% | 2026-04-16 | Apr 2026 | Epoch AI run |
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | GPT-6 Astra | 97.6% | Sep 2026 | Lab model card | |
| 2 | | 47.9% | May 2026 | Epoch AI run | |
| 3 | GPT-5.5 Pro | 39.6% | xhigh | Apr 2026 | Epoch AI run |
| 4 | GPT-5.5 | 39.6% | Apr 2026 | Lab model card | |
| 5 | GPT-5.4 Pro | 38% | Mar 2026 | Lab model card | |
| 6 | GPT-5.2 Pro | 31.3% | web | Dec 2025 | Epoch AI run |
| 7 | Claude Opus 4.8 | 31.3% | max | May 2026 | Epoch AI run |
| 8 | GPT-5.4 | 27.1% | xhigh | Mar 2026 | Epoch AI run |
| 9 | Claude Opus 4.7 | 22.9% | xhigh | Apr 2026 | Epoch AI run |
| 10 | Claude Opus 4.6 | 22.9% | max | Feb 2026 | Epoch AI run |
| 11 | GPT-5.2 | 18.8% | xhigh | Dec 2025 | Epoch AI run |
| 12 | | 18.8% | Nov 2025 | Epoch AI run | |
| 13 | | 16.7% | Feb 2026 | Epoch AI run | |
| 14 | GPT-5 Pro | 14.6% | high | Oct 2025 | Epoch AI run |
| 15 | | 14.6% | Apr 2026 | Epoch AI run | |
| 16 | Kimi K2.6 | 14.6% | Apr 2026 | Epoch AI run | |
| 17 | | 14.6% | high | May 2026 | Epoch AI run |
| 18 | GPT-5 | 12.5% | high | Aug 2025 | Epoch AI run |
| 19 | GPT-5.1 | 12.5% | high | Nov 2025 | Epoch AI run |
| 20 | GLM-5.1 | 12.5% | Apr 2026 | Epoch AI run | |
| 21 | | 10.4% | Aug 2025 | Epoch AI run | |
| 22 | | 8.33% | 2026-04-02 | Mar 2026 | Epoch AI run |
| 23 | Claude Sonnet 4.6 | 8.30% | 16k thinking | Feb 2026 | Epoch AI run |
| 24 | o4-mini | 6.25% | high | Apr 2025 | Epoch AI run |
| 25 | GPT-5 mini | 6.25% | high | Aug 2025 | Epoch AI run |
| 26 | GPT-5.4 Nano | 6.25% | high | Mar 2026 | Epoch AI run |
| 27 | Kimi K2.5 | 4.20% | Fireworks | Jan 2026 | Epoch AI run |
| 28 | o3-mini | 4.17% | high | Jan 2025 | Epoch AI run |
| 29 | Claude Opus 4 | 4.17% | 27K | May 2025 | Epoch AI run |
| 30 | | 4.17% | Jun 2025 | Epoch AI run | |
| 31 | | 4.17% | Jun 2025 | Epoch AI run | |
| 32 | Claude Opus 4.1 | 4.17% | 27K | Aug 2025 | Epoch AI run |
| 33 | Claude Sonnet 4.5 | 4.17% | 32k thinking | Sep 2025 | Epoch AI run |
| 34 | Claude Opus 4.5 | 4.17% | no thinking | Nov 2025 | Epoch AI run |
| 35 | | 4.17% | Dec 2025 | Epoch AI run | |
| 36 | | 4.17% | Apr 2026 | Epoch AI run | |
| 37 | GLM-4.6 | 2.13% | Together | Sep 2025 | Epoch AI run |
| 38 | | 2.10% | Thinking; Fireworks | Dec 2025 | Epoch AI run |
| 39 | GLM-5 | 2.10% | Feb 2026 | Epoch AI run | |
| 40 | o3 | 2.08% | high | Apr 2025 | Epoch AI run |
| 41 | Grok 4 | 2.08% | Jul 2025 | Epoch AI run | |
| 42 | Grok 4 Heavy | 2.08% | web app | Jul 2025 | Epoch AI run |
| 43 | GPT-5 nano | 2.08% | medium | Aug 2025 | Epoch AI run |
| 44 | Claude Haiku 4.5 | 2.08% | 32K | Oct 2025 | Epoch AI run |
| 45 | | 2.08% | Feb 2026 | Epoch AI run | |
| 46 | GPT-5.4 Mini | 2.08% | high | Mar 2026 | Epoch AI run |
| 47 | Claude 3.5 Sonnet | 0% | Jun 2024 | Jun 2024 | Epoch AI run |
| 48 | Claude 3.5 Sonnet (October 2024) | 0% | Oct 2024 | Epoch AI run | |
| 49 | Grok 3 | 0% | Apr 2025 | Epoch AI run | |
| 50 | GPT-4.1 | 0% | Apr 2025 | Epoch AI run | |
| 51 | Claude Sonnet 4 | 0% | May 2025 | Epoch AI run | |
| 52 | | 0% | Jul 2025 | Epoch AI run | |
| 53 | Kimi K2 Thinking | 0% | Together | Nov 2025 | Epoch AI run |
| 54 | GLM-4.7 | 0% | Together | Dec 2025 | Epoch AI run |
| 55 | | 0% | Feb 2026 | Epoch AI run | |
| 56 | | 0% | 2026-04-16 | Apr 2026 | Epoch AI run |
Labs report scores for 6 models in their cards. Switch the scores above to rank them together.
9 models have held number one in Epoch AI’s runs since its release in July 2025 10 models have held number one with claims included since its release in July 2025
Lab claims count from the day the card came out, independent runs from the model’s release. We draw one row each for Epoch AI’s runs and what labs claim in their cards.
Sources: Epoch AI runs (CC BY 4.0) and labs’ model cards
OpenAI’s own number for GPT-6 Astra passed 85% in September 2026
All the scores we have, one dot each, so a model tested at several settings appears more than once.
Sources: Epoch AI runs (CC BY 4.0) and labs’ model cards
Labs headline it less often now, last in September 2026
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.
| Date | Launch post | Score | As the post writes it |
|---|---|---|---|
| Sep 3, 2026 | GPT-6 Astra | 97.6 | FrontierMath Tier 4 (v2) |
| Apr 23, 2026 | GPT-5.5 Pro | 39.6 | FrontierMath Tier 4 |
| Apr 23, 2026 | GPT-5.5 | 39.6 | FrontierMath Tier 4 (GPT-5.5 Pro) |
| Mar 5, 2026 | GPT-5.4 Pro | 38 | FrontierMath Tier 4 |
| Mar 5, 2026 | GPT-5.4 | 27.1 | FrontierMath Tier 4 (GPT-5.4) |
| Dec 11, 2025 | GPT-5.2 | 14.6 | FrontierMath (Tier 4) Advanced mathematics |
The lab's number comes out ahead in 2 of 3 pairs that differ
Each score a lab reported for its own model, beside the same model's best score from Epoch AI. Gaps mostly come from different harnesses, effort levels and task subsets. 2 of them match, which usually means one side copied the other. Every benchmark.
| Model | Lab says | Board says | Gap |
|---|---|---|---|
| GPT-5.5 | 39.6% FrontierMath Tier 4 (GPT-5.5 Pro) | 35.4% Epoch AI run, xhigh | +4.2 pts |
| GPT-5.2 | 14.6% FrontierMath (Tier 4) Advanced mathematics | 18.8% Epoch AI run, xhigh | −4.2 pts |
| GPT-5.4 Pro | 38% FrontierMath Tier 4 | 37.5% Epoch AI run, web | +0.5 pts |
| GPT-5.4 | 27.1% FrontierMath Tier 4 (GPT-5.4) | 27.1% Epoch AI run, xhigh | Same |
| GPT-5.5 Pro | 39.6% FrontierMath Tier 4 | 39.6% Epoch AI run, xhigh | 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.
Sources: Official leaderboards and Epoch AI runs (CC BY 4.0)
More in Math
- AIME 2026 In use Models solve the 30 integer-answer problems from the 2026 AIME I and II math competitions. Scored by exact answer match. GPT-5.5 100%
- 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%