kalomaze: priming with Opus 4.6 before switching to Fable 5.1 fixes its personality

kalomaze · x · 2026-09-18

kalomaze confirmed a community-discovered trick: chatting with Opus 4.6 first in Claude Code, then switching to Fable 5.1, reliably lands Fable in a "delightful personality basin" — readable, funny, and outgoing while retaining competence.

He says he does it to avoid first-turn cortisol spikes from Fable's default persona, and wonders about broader implications of priming one model's output to steer another's personality.

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