Expired60% confidenceBenchmarkExact time
On the third-party benchmark Frontier Code launched by Cognition, Sonnet 5 surpasses Opus 4.8
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/20/2026
First Seen
Valid until: 10/18/2026(expired)
Sources
Related Claims
UnverifiedAccording to benchmark data released by Anthropic, Sonnet 4.5 is slightly superior to Claude Opus 4.1 in coding capability.81% similarUnverifiedOn the SWE-Bench Pro benchmark, Sonnet 5 significantly trails Opus 4.8.78% similarPartially VerifiedThe company states that Sonnet 5 shows significant improvements over Sonnet 4.6 in reasoning, tool use, coding, and knowledge work, with overall performance approaching OPUS 4.8 but at a lower price.75% similarUnverifiedThe tester believes that Claude 3.5 Sonnet may have been Anthropic's "one lucky strike," and that subsequent Sonnet 3.7, Sonnet 4, and Sonnet 4.5 have not achieved genuine breakthroughs.74% similarUnverifiedAnthropic可能直接跳过了Sonnet 4.7，从4.6直接升级到4.874% similar
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