Entropic unveiled the Claude Opus 5.5 model; Performance on par with Fable 5.1 but cheaper

The new Claude Opus 5.5 model is the first member of the Claude 5.5 family. This model has the same level of performance as Claude Fable 5.1 in many tasks, but its implementation cost is about 40% lower than Opus 5. Opus 5.5

Digiato | دیجیاتوSep 228

Opus 5.5 vs Opus 5 (1M)

Both were given the same prompt & /goal, to redesign a sloppy app. which one did it better?

jaiminSep 224

We are heading the right way AnthropicAI

We need cheaper AI; They are better now Opus 5.5 costs 40% less than Opus 5, and is the same level as Fable 5.1

Lucas RodriguesSep 22

"Opus 5.5 performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5."

Doran.artisan.cashSep 2229