Unverified60% confidenceFactTime unknown
The previous-generation Sonnet 4.5 scored 61.4% on the OSWorld Verified benchmark.
2
Sources
60%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedOn the SWE Bench Pro programming benchmark, Sonnet 5 achieved 63.2% and Opus 4.8 achieved 69.2%.79% similarVerifiedThe 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.77% similarUnverifiedIn a comprehensive business test covering dozens of professions and industries, Sonnet 5.5's score is nearly on par with Opus 5.5.77% similarVerifiedOn the SWE-Bench Pro benchmark, Sonnet 5 significantly trails Opus 4.8.73% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/13717API
curl https://kongchang.com/api/v1/knowledge/claims/13717MCP
get_claim(id=13717)