OpenAI has expanded the availability of its GPT-5.3-Codex model to third-party developers via API and Microsoft Foundry.

GPT-5.3-Codex-Spark is the latest version of OpenAI's Codex and runs completely on Cerebras' wafer-scale engine.

OpenAI's new Spark model codes 15x faster than GPT-5.3-Codex - but there's a catch ...

The new model is specifically designed to handle complex software engineering projects and can help with vibe coding, too. OpenAI has announced its newest model, GPT-5-Codex. The new model has been ...

Claude Code vs ChatGPT Codex compared for performance, pricing, workflows, and privacy to find the best AI coding assistant ...

OpenAI announced ' GPT-5.3-Codex ' on February 5, 2026. GPT-5.3-Codex is a model that combines the coding capabilities of GPT-5.2-Codex and the inference capabilities of GPT-5.2, achieving improved ...

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 ...

What if coding wasn’t just a skill but a conversation, one where your AI collaborator anticipates your needs, adapts to your workflow, and executes complex tasks with precision? OpenAI’s GPT-5 Codex ...

Been a dev for 18 years. I've always picked up the new tools first out of my team because I enjoy test driving the latest stuff and for some reason I have patience for not getting shit done while I ...

GPT-5.3-Codex is about more than just writing code ...

GPT-4o and other older models in ChatGPT, shifts focus to GPT-5.2, and launches GPT-5.3-Codex-Spark for real-time coding ...