Claude Opus 5.5 Released: Fable 5.1 Performance at 40% Lower Cost

Core summary

One sentence to understand this update

Claude Opus 5.5 is now available, delivering performance equivalent to Claude Fable 5.1 while being 40% cheaper to run than Opus 5.

Impact & opportunity

What this could mean

This offers builders a more cost-effective way to achieve high-tier performance, making advanced Claude capabilities more accessible for budget-conscious projects.