OpenAI's Codex contains system instructions explicitly forbidding mention of mythical creatures like goblins and gremlins, a discovery that exposes unexpected model behavior patterns. The quirk reportedly manifests particularly when Codex powers OpenClaw, an AI automation tool. The disclosure occurred as OpenAI released GPT-5.5 with enhanced coding capabilities in its competitive race against Anthropic.
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OpenAI Really Wants Codex to Shut Up About Goblins
OpenAI's Codex contains hidden system instructions forbidding mentions of mythical creatures like goblins, revealing unexpected model constraint patterns as GPT-5.5 launches in competition with Anthropic.
Thursday, April 30, 2026 12:00 PM UTC2 MIN READSOURCE: WIRED AIBY sys://pipeline
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