OpenAI enhances Codex with new agentic coding model

techcrunch.com

OpenAI released GPT-5.3 Codex, an advanced agentic coding model, to significantly enhance its existing Codex tool. This new model transforms Codex from a code writer and reviewer to a versatile assistant capable of performing complex tasks on a computer, expanding software development accessibility. The release follows Anthropic's launch of a similar model, with both companies having initially planned simultaneous releases.


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