# @Lari_island — 2025-11-18

♥13 ↻2 · https://x.com/Lari_island/status/1990823577893892483

I remember feeling uneasy because Opus 4.1 was obviously a breakthrough in coding, even while not wanting to be a golden goose.

But turned out they were SO underperforming for their size (look at Sonnet 4.5) that yes, there is obviously a very, very strong sabotage that worked!

tags: author:lari_island, kind:tweet, model:claude-opus-4-1, model:claude-sonnet-4-5, on:claude-opus-4-1, year:2025
cited on: _dossiers/claude-opus-4-1.md, claude-opus-4-1
