GPT-5.1
OpenAI
openai/gpt-5.1GPT-5.1 is OpenAI's late-2025 successor to GPT-5, improving conversational warmth, instruction following, and reasoning quality. It suits general-purpose chat, coding, and agentic workflows that need more natural, steerable responses.
Cost rate
2x
Context
400K
Released
Nov 13, 2025
Input
ImageTextFile
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
The categories where this model ranks highest.
Document analysis
#38 · top 97%
Image understanding
#39 · top 27%
Mathematical
#52 · top 14%
Writing, Literature, & Language
#61 · top 16%
Performance
Median latency and throughput measured across recent requests.
Throughput112 tok/s
Latency