GPT-5.1 (batch)
OpenAI
openai/gpt-5.1:batchGPT-5.1 is OpenAI's late-2025 successor to GPT-5, improving conversational warmth, instruction following, and reasoning quality for chat, coding, and agentic workflows. This is the batch variant for cheaper asynchronous processing.
Cost rate
0.9x
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%