The SWE-Bench Verified evaluation is basically a test of AI processing accuracy. It measures how well the AI solves a set of coding problems. According to OpenAI, GPT-5.1-Codex-Max "reaches the same ...
In a post on X, OpenAI confirmed that GPT 5.1-Codex-Max can work independently for hours. Unlike GPT-5.1, which is optimized for research, normal interaction, generating images, etc, Codex is tailored ...
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