OpenAI’s internal Codex also found the counterexample in one autonomous run
aaron_lou · x · 2026-07-21
A thread claims OpenAI’s internal Codex also found the same counterexample, and that the result was produced fully autonomously in a single shot.
- The model reportedly completed the work without any harness.
- The prompt has been publicly released.
- The update strengthens the case that the result was not a human-assisted artifact, but an actual autonomous model run.
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