Unverified50% confidenceBenchmarkExact time
Anthropic officially states that Opus 5.5 achieves Fable 5.1-level coding performance on most tasks.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/23/2026
First Seen
Valid until: 12/22/2026
Sources
Related Entities
Related Claims
UnverifiedAnthropic's Thariq Shihipar stated that Opus 5.5 expresses more clearly, has a lower cost per token than Opus 5.0, and possesses an intelligence level close to Fable 5.1.78% similarUnverified该团队成员表示在许多编程任务中他更倾向于使用Opus 5而非同期的Fable 577% similarUnverifiedAnthropic has internally trained a new model that outperforms Opus 5, which may be named Opus 5.1 or Opus 6.74% similarUnverifiedThe tester considers Opus 5 an excellent coding model, with capabilities not far behind Sonnet 5 and at a lower price.68% similarUnverifiedA minor version number (such as 5.5) typically implies capability enhancements built on the existing architecture rather than an entirely new architecture.68% similar
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