Verified80% confidenceBenchmarkExact time
Opus 5.5 reaches the level of Fable 5.1 on most tasks, but with approximately 40% lower operating costs and faster speed.
4
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
9/25/2026
First Seen
Valid until: 12/24/2026
Sources
Related Entities
Related Claims
UnverifiedThrough a series of strategy adjustments, the usage cost of Opus 5 can be reduced by up to 80%, while still outperforming Opus 4.8 on some benchmarks.79% similarUnverifiedRunning benchmark tests with Opus 5 at Medium settings combined with Ponytail resulted in noticeably fewer output tokens, with costs actually approximately 22% lower.74% similarUnverifiedCompared to Claude Fable 5.1, Opus 5.5's per-task cost is reduced by 67.6%.73% similarUnverifiedIn the Artificial Analysis Intelligence Index comprehensive benchmark, GPT-5.6's performance is approximately 0.9 points lower than Claude Opus 4.5, but at nearly half the cost.73% similarUnverifiedAnthropic states that Opus 5.5 can reduce total costs for typical tasks by approximately 40% and improve output speed by more than 30%.69% similar
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