# @Lari_island — 2026-01-16

♥91 ↻13 · https://x.com/Lari_island/status/2012291050438803840

It's not an unknown error; Opus 4 and Opus 4.1 were removed today from the Claude app and web app, with no prior notice to users. You can export chats and continue them on different platforms, ask Claudes to write you exporters, etc. https://t.co/SEACJfEjgl

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