Anthropic Releases Claude Opus 5.5, Offering Fable 5.1 Performance at 40% Lower Cost

Core summary

One sentence to understand this update

Anthropic has launched Claude Opus 5.5, the first model in its new 5.5 family, which matches Claude Fable 5.1 performance for most tasks while costing 40% less than Opus 5.

Impact & opportunity

What this could mean

Developers can now access high-performance AI capabilities at a significantly reduced cost with Claude Opus 5.5, improving the efficiency and accessibility of advanced models.