New Delhi, Nov. 23 -- OpenAI this week rolled out GPT-5.1-Codex-Max, a new agentic coding model, built for long-running and detailed software development tasks.

Described as "faster, more intelligent, and more token-efficient at every stage of the development cycle," the new model is available across all Codex surfaces.

This launch comes shortly after Google unveiled Antigravity, its agentic, developer-focused AI platform, setting the stage for a head-to-head battle between the two biggest players in AI for the future of software development.

Codex Max is OpenAI's newest and most advanced coding model, built on top of the GPT-5.1 architecture. The model was trained using real software engineering work - things like creating pull reques...