BREAKING : GPT‑5.3‑CODEX WAS USED TO SUPPORT CREATING ITSELF, ACCORDING TO OPENAI'S BLOG! It achieves SOTA score of 57% at SWE Bench Pro and 76% on TerminalBench. "With GPT‑5.3-Codex, Codex goes from an agent that can write and review code to an agent that can do nearly

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