GPT-5.1 is OpenAI's GPT-5 series model for coding and agentic tasks, with configurable reasoning effort that includes a non-reasoning setting. It takes text and image input and produces text output, with a 400K-token context window and up to 128K output tokens.
Modalities
In / out price
$1.25 / $10.00per 1M
Cached price
$0.125per 1M
Context
400K
Max output
16K
Providers
1 routeCompare providers by price, privacy, and speed.
| Anonymous | $1.25 | $10.00 | $0.125 | 400K | 16K | — | — |
Privacy
1 / 4Anonymous routing
Anonymous tier
- Anonymous
- Private
- TEE
- E2EE
Your identity is hidden from the inference provider. The inference provider can see prompt content; zero retention is not guaranteed. Learn more
Features
4Streaming
Tool calling
Reasoning
Prompt caching
Uptime
FAQ
Common questions about GPT-5.1.