GPT-5.1
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...
The figures
- Made by
- OpenAI
- Model ID
- openai/gpt-5.1
- Input
- $1.25 per million tokens
- Output
- $10 per million tokens
- Context window
- 400K tokens
- Longest answer
- 128K tokens
- Takes in
- image, text, file
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- Yes
- Open weights
- No
- Released
- 13 Nov 2025
Read on 3 Oct 2026.