The new coding model is the first time the brand has found its own models can be instrumental in its own development.

OpenAI has introduced GPT-5.3-Codex, a faster and more capable coding AI that can handle long tasks and even help in its own ...

OpenAI launched GPT-5.3-Codex as Anthropic released Claude Opus 4.6 in a simultaneous drop that kicks off the AI coding wars, ...

Anthropic, one of OpenAI's chief rivals, also released a new coding model today, Claude Opus 4.6. Earlier this week, OpenAI ...

The new model is built to accelerate the capabilities of Codex, the agentic coding tool OpenAI launched earlier this week.

On Thursday afternoon, OpenAI released a new cutting-edge coding model that the company said assisted in its own creation. “GPT-5.3-Codex is our first model that was instrumental in creating itself,” ...