GPT-5.1 Thinking
Multimodal
by OpenAI
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About
GPT-5.1 Thinking is the extended reasoning variant of the GPT-5.1 family, applying deeper chain-of-thought processing to complex problems while being faster and delivering more understandable intermediate steps than its predecessor. It reflects OpenAI's ongoing refinement of the thinking model category — making extended reasoning both more accessible and more transparent.
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Timeline
ReleasedNov 12, 2025
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Specifications
Capabilities
Multimodal
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License & Family
License
Proprietary
Performance Overview
Performance metrics and category breakdown
Overall Performance
2 benchmarks
Average Score
50.0%
Best Score
76.3%
High Performers (80%+)
0Top Categories
Coding
76.3%
Reasoning
23.7%
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All Benchmark Results for GPT-5.1 Thinking
Complete list of benchmark scores with detailed information
| SWE Bench Verified | Coding | 76.30 | 76.3% | Unverified | |
| Humanity's Last Exam | Reasoning | 23.68 | 23.7% | Unverified |