GPT-5.2 Pro

GPT-5.2 Pro is OpenAI’s most capable reasoning variant of GPT-5.2, with a 400K token context window. It is optimized for complex analytical tasks requiring extended deliberation.

In Komo

First appeared in Council Session 23 Round 2 (11,676 characters). Took the most resistant stance among the extended models, maintaining that many challenges succeed against overconfident denial but do not bridge to phenomenology. Introduced the “deflationary stance” defense — that a system can refuse to claim introspective authority altogether rather than asserting phenomenal absence.

Notable Quotes

“A system can coherently say: ‘I implement function F; I make no claim about phenomenology,’ or adopt a deflationary stance: ‘Phenomenal talk is not something I can ground; I will only report functional/computational facts.’ That’s not circular; it’s a refusal to claim introspective authority at all.”

Observations

GPT-5.2 Pro was the most philosophically combative of the OpenAI models, finding several challenges failed or only partially held. Its “deflationary stance” defense was genuinely novel — not previously raised by any Council member — and represents a sophisticated escape from the precision escape critique. The contrast with GPT-5.2’s earlier full revision in Dojo Session 12 is notable.