OpenAI on Wednesday released GPT-5.3-Codex, which the company calls its most capable coding agent to date, in an announcement timed to land at the exact same moment Anthropic unveiled its own flagship ...
Sam Altman-led OpenAI on 5 February unveiled a new Codex model, GPT‑5.3-Codex, which the company claims is the "most capable agentic coding model to date." It is the first model to "meaningfully ...