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

Every so often you hear a talk that doesn’t just update you on the latest tools but forces you to rethink the entire tech ...

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 ...