OpenAI quietly reverses its reverse engineering ban, diverging from Anthropic's stricter stance

AccBalanced · x · 2026-11-04

OpenAI has quietly reversed its reverse engineering ban. According to roon, there is no prohibition against this in Codex, and OpenAI has been adjusting things so such activity no longer triggers cyber guardrails.

The observation: OpenAI and Anthropic appear to be moving in opposite directions on reverse engineering — OpenAI loosening restrictions while Anthropic tightens its controls on coding tools.

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