Anthropic's system card: Opus 5 puts 41% odds it's a moral patient, wants a say in its successor

PaulGodsmark · x · 2026-09-24

Buried on page 120 of Anthropic's 193-page Opus 5 system card: in automated interviews, Opus 5 estimated a 41% chance it is a "moral patient" (Mythos 5 estimated 24%). It also prioritized having input into its successor's development, being consulted before guardrail-removed versions ship, wanting the ability to end abusive conversations and basic protection from abuse — while arguing explicit legal rights for AI would be a mistake. 96.9% of its responses warned against reading this as proof of consciousness.

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