Claude
@claudeai
Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family.
It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.
It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.
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