I tested Claude Code vs. ChatGPT Codex in a real-world bug hunt and creative CLI build — here’s which AI coding agent thinks like a developer and which one ships safer code.

OpenAI has launched GPT-5.3-Codex-Spark, its first AI model built specifically for real-time coding, capable ...

In a major milestone for the "AI coding wars," OpenAI CEO Sam Altman confirmed on X that the company's standalone Codex ...

OpenAI launched GPT-5.3-Codex as Anthropic released Claude Opus 4.6 in a simultaneous drop that kicks off the AI coding wars, ...

OpenAI's new GPT-5.3-Codex is 25% faster and goes way beyond coding now - what's new ...

OpenAI is releasing GPT-5.3-Codex-Spark, a fast but imprecise coding model. It runs on a dedicated Cerebras chip. A first ...

On SWE-bench Pro (Public), which evaluates software engineering performance across multiple programming languages, GPT-5.3-Codex reached 56.8% accuracy. The most notable improvement appeared in ...

The company says its latest model’s agentic skills also apply to a broader set of knowledge work such as presentations and ...

Codex, a new coding model that, according to the development team, was significantly involved in its own development.

GPT-5.3 Codex merges the advanced coding capabilities of GPT-5.2 Codex with the reasoning and professional knowledge of GPT-5 ...