The new model is build to accelerate the capabilities of Codex, the agentic coding tool OpenAI launched earlier this week.
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, ...
The new coding model released Thursday afternoon, entitled GPT-5.3-Codex, builds on OpenAI’s GPT-5.2-Codex model and combines insights from the AI company’s GPT-5.2 model, which excels on non-coding ...
Yesterday, we talked about how Claude is starting to behave less like software and more like a coworker. People aren’t just prompting Claude Code and waiting for an answer anymore. They’re leaving it ...