Vibe Check: Opus 5.5 Is Pulling Our Codex Converts Back to Claude
Anthropic says Opus 5.5 matches Fable 5.1 on most work. Kieran’s everyday coding and design work supports that claim, though Dan’s “smaller Fable” assessment shows we don’t all agree.
TL;DR
- Anthropic claims Opus 5.5 matches Fable 5.1 in most tasks.
- Kieran's work validates Anthropic's claim.
- Dan's assessment differs, calling Fable a 'smaller Fable'.