GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning to allocate computation dynamically, responding quickly to simple queries while spending more depth on complex tasks. The model produces clearer, more grounded explanations with reduced jargon, making it easier to follow even on technical or multi-step problems.
Built for broad task coverage, GPT-5.1 delivers consistent gains across math, coding, and structured analysis workloads, with more coherent long-form answers and improved tool-use reliability. It also features refined conversational alignment, enabling warmer, more intuitive responses without compromising precision. GPT-5.1 serves as the primary full-capability successor to GPT-5
- Provider
- OpenAI
- Context Length
- 400,000 tokens
- Input Types
- image, text, file
- Output Types
- text
- Category
- GPT
- Added
- 11/13/2025
Benchmark Performance
How GPT-5.1 compares to its closest rivals across industry benchmarks
Metric: Money Balance ($)
Metric: % Resolved
Metric: Intelligence Index
| Specification | GPT-5 Previous | GPT-5.1 Current | Change |
|---|---|---|---|
| Context Window | 400K | 400K | |
| Reasoning Support | |||
| Input Types | text, image, file | image, text, file | |
| Output Types | text | text | |
| Input Price (per 1M) | $1.25 | $1.25 | |
| Output Price (per 1M) | $10.00 | $10.00 |
Frequently Asked Questions
Common questions about GPT-5.1