GPT-5.1 Thinking
GPT-5.1 Thinking is the next iteration of GPT-5, designed with enhanced adaptive reasoning capabilities. Unlike GPT-5.1 Instant, GPT-5.1 Thinking adapts thinking time more precisely to each question, providing more thorough reasoning for complex queries. It offers improved conversational abilities with clearer and more engaging interactions, reducing jargon and enhancing user comprehension. GPT-5.1 Thinking demonstrates significant improvements in coding tasks and complex reasoning scenarios, making it valuable for developers and users who need deeper analysis.
Benchmark results
| Benchmark | Score | Tags | Source |
|---|---|---|---|
| AIME 2025 | 94.0% | self-reported llm-stats | link → |
| BrowseComp Long Context 128k | 90.0% | self-reported llm-stats | link → |
| FrontierMath | 26.7% | self-reported llm-stats | link → |
| GPQA | 88.1% | self-reported llm-stats | link → |
| MMMU | 85.4% | self-reported llm-stats | link → |
| SWE-Bench Verified | 76.3% | self-reported llm-stats | link → |
| Tau2 Airline | 67.0% | self-reported llm-stats | link → |
| Tau2 Retail | 77.9% | self-reported llm-stats | link → |
| Tau2 Telecom | 95.6% | self-reported llm-stats | link → |