OpenAIGPT-5.1Nov 12, 2025
GPT 5.1 Thinking
An upgraded version of GPT-5 that adapts thinking time more precisely to the question to spend more time on complex questions and respond more quickly to simpler tasks.
Context Window
400K
tokens
Max Output
128K
tokens
Released
Nov 12, 2025
Arena Rank
—
Capabilities
👁Vision
🧠Reasoning
🔧Tool Calling
⚡Prompt Caching
🖥Computer Use
🎨Image Generation
Pricing Comparison
| Router | Input / 1M | Output / 1M | Cached Input / 1M |
|---|---|---|---|
| Vercel AI | $1.25 | $10.00 | — |
Model IDs
Tags
tool-useimplicit-cachingreasoningvisionfile-input