Anthropic tests Fable 5.2 and Opus 5.5 ahead of the release

Anthropic appears to be quietly A/B testing Claude Fable 5.2, with users reporting stronger one-shot JavaScript outputs and richer canvas demos. Early comparisons suggest a clear step up from 5.1, as Opus 5.5 rumors also build.

🗞 #anthropic @testingcatalog