Testing whether Claude models notice when you swap models mid-conversation — Fable didn't refuse

davidmanheim · x · 2026-09-23

David Manheim probes model self-awareness: asking Sonnet about a likely-refused-by-Fable topic (synthesis of dithiophosphates, barely related to nerve agents), then switching to Fable — which didn't refuse. The core question raised: can models "notice" that preceding text isn't something they'd write and act on it unprompted.

Related event: Cross-Model Experiment: Sonnet Answers Sensitive Topic That Fable Refuses(2 posts)→

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