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

Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line ...

Carrier Logistics, DAT, and SureCam introduce tools that improve fleet routing, delivery accuracy, and operational efficiency ...

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

OpenAI has a published Preparedness Framework, which it uses for measuring and protecting against severe harm from frontier AI capabilities. In the blog post announcing GPT-5.3-Codex, the company says ...