Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line ...
The new coding model is the first time the brand has found its own models can be instrumental in its own development.
OpenAI launches GPT-5.3-Codex with faster coding, stronger reasoning, and higher benchmark accuracy—plus API access soon.
Notably, GPT-5.3-Codex is the first OpenAI model that was used to create itself: The team used early versions of the model to debug its training, manage its deployment, and diagnose test results and ...
Interesting Engineering on MSN
OpenAI launches Codex app to manage multiple AI agents across software projects
OpenAI has launched a new Codex desktop app aimed at helping developers manage multiple ...
Dan tested Codex 5.3 on Proof, a macOS markdown editor that he's been vibe coding that tracks the origin of every piece of text—whether it was written by a human or generated by AI—and lets users ...
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