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

CrashFix crashes browsers to coerce users into executing commands that deploy a Python RAT, abusing finger.exe and portable ...

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

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 ...

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