Claude Opus 5.5 launches at Fable 5.1-level performance with 40% lower cost
CurieuxExplorer · x · 2026-09-25
Anthropic has introduced Claude Opus 5.5, the first model in its new Claude 5.5 family.
- Performs at the level of Claude Fable 5.1 for most tasks
- Costs 40% less to run than Opus 5
Observers note the opening move—a price cut—is a bold one.
Related event: Anthropic Launches Claude Opus 5.5 with 40% Lower Cost(2 posts)→
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