Introducing Claude Opus 5.5
- We’re 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 on most work and costs 40% less to run than Opus 5.
- Claude Opus 5.5 is our first release since we called for pacing the frontier.
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- We’re 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 on most work and costs 40% less to run than Opus 5.
- Claude Opus 5.5 is our first release since we called for pacing the frontier.
Sources: Anthropic