GPT-5.1-Codex-Max
An agentic coding model for Codex built for long-running, project-scale work.
Introducing GPT-5.1-Codex-Max, a faster, more intelligent agentic coding model for Codex. The model is designed for long-running, project-scale work with enhanced reasoning and token efficiency.
Official source
Building more with GPT-5.1-Codex-Maxopenai.com · published