OpenAI is rolling out the GPT-5 Codex model to all Codex instances, including Terminal, IDE extension, and Codex Web (codex.chatgpt.com).

The new model is specifically designed to handle complex software engineering projects and can help with vibe coding, too.

From cloud hand-offs to GitHub reviews, GPT-5-Codex is optimized for agentic coding and designed to supercharge developer workflows.

Klarna CEO Sebastian Siemiatkowski said AI coding tools like Cursor have helped him build prototypes faster, even with a ...