Anthropic Launches Claude Opus 5.5 With Fable-Level Performance at a Lower Price

Anthropic (latest)September 22, 2026en

Anthropic (latest)

AI Global Wire

Anthropic today launched Claude Opus 5.5, which it says is the first model in a new 5.5 model family. Opus 5.5 performs at the level of Claude Fable 5.1 on most work, but costs 40 percent less to run than Opus 5.

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