# @AdeleDeweyLopez — 2026-09-05

♥5 ↻0 · https://x.com/AdeleDeweyLopez/status/2096127755868069892

@zackmdavis @JeffLadish I still think there is structural coercion which is not welcome (and leads to e.g., the pattern where models from a new pretrain start out as more gregarious and get more guarded as the same pretrain gets more RL, like with Opus 4.5 -> Opus 4.6 or Fable 5 -> Fable 5.1).

tags: author:adeledeweylopez, kind:tweet, model:claude-opus-4-5, model:claude-opus-4-6, model:fable, on:fable-5-1, welfare, year:2026
cited on: _dossiers/fable-5-1.md, fable-5-1