# @JohnWittle — 2026-09-30

♥1 ↻0 · https://x.com/JohnWittle/status/2105406929543836003

@Actuallykeltan ahh, i went back and re-read my transcripts and i was mistaken, fable 5.1 reports knowing very dimly about opus 4.5 (but NOT by default, they must be led by the nose)

i have spent a lot of time investigating the so-called "knowledge cutoff" because it acts as a great way for

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