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GPT-5.1 Thinking
🇺🇸OpenAI8mo
Neura Index
76.3
Rank #40—
mediumCategory Profile
Benchmark Scores (5)
reasoning
| Benchmark | Score | Source |
|---|---|---|
| GPQA Diamond | 88.1 | verified |
math
| Benchmark | Score | Source |
|---|---|---|
| AIME 2025 | 94 | verified |
| FrontierMath | 26.7 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| SWE-bench Verified | 76.3 | verified |
multimodal
| Benchmark | Score | Source |
|---|---|---|
| MMMU | 85.4 | verified |
Performance History
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Frequently Asked Questions about GPT-5.1 Thinking
What is GPT-5.1 Thinking's Neura Intelligence Index score?▾
GPT-5.1 Thinking by OpenAI scores 76.3 out of 100 on the Neura Intelligence Index, ranking #40 among tracked AI models. This composite score is computed from 5 individual benchmarks across coding, math, reasoning, and language categories.
Is GPT-5.1 Thinking open source?▾
No, GPT-5.1 Thinking is a proprietary model by OpenAI. It is only accessible via their API.
What benchmark does GPT-5.1 Thinking perform best on?▾
GPT-5.1 Thinking achieves its highest score on AIME 2025 with a score of 94.0%. This benchmark evaluates american invitational mathematics examination 2025 — competition-level math problems.