GPT-5.2
OpenAI
openai/gpt-5.2GPT-5.2 is OpenAI's December 2025 flagship release, offered in instant, thinking, and pro modes with a 400K-token context window. It is designed for enterprise-scale reasoning, document and codebase analysis, and complex agentic workflows.
Cost rate
2.5x
Context
400K
Released
Dec 10, 2025
Input
FileImageText
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
The categories where this model ranks highest.