The new model is build to accelerate the capabilities of Codex, the agentic coding tool OpenAI launched earlier this week.
How real is the AI threat to software companies? CNBC put it to the test by vibe-coding a Monday.com replacement.
OpenAI has a published Preparedness Framework, which it uses for measuring and protecting against severe harm from frontier AI capabilities. In the blog post announcing GPT-5.3-Codex, the company says ...
OpenAI launches GPT-5.3-Codex with faster coding, stronger reasoning, and higher benchmark accuracy—plus API access soon.
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