OpenAI Releases GPT-5.3-Codex, a New Codex Model for Agent-Style Development laravel-news.com

OpenAI introduced GPT‑5.3‑Codex, a Codex model focused on agent-style development workflows where the model can use tools, operate a computer, and complete longer tasks end-to-end. OpenAI says GPT‑5.3‑Codex runs 25% faster for Codex users and is available to paid ChatGPT plans across the Codex app, CLI, IDE extension, and web, with API access planned once it’s safely enabled.