OpenAI has launched GPT-5.3 Codex offering a 25% speed increase over GPT-5.2 Codex, helping developers ship code faster.

GPT-5-Codex promises higher performance and success rates It’s included for Plus, Pro, Business, Edu and Enterprise users The model can use 93.7% fewer tokens on lightweight tasks OpenAI has shared ...

In a bid to inject AI into more of the programming process, OpenAI is launching Codex CLI, a coding “agent” designed to run locally from terminal software. Announced on Wednesday alongside OpenAI’s ...