Unverified50% confidenceBenchmarkExact time
Claude Opus 5.5's score on the ECI benchmark surpassed competing products such as OpenAI's GPT-5.5 Pro.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/5/2026
First Seen
Valid until: 10/19/2026
Sources
Related Entities
Related Claims
UnverifiedOpus 5.5 surpassed contemporaneous competing products on almost all benchmarks.74% similarUnverifiedIn the WANDR benchmark, Claude Opus 5.5 achieved a score of 0.610.74% similarUnverifiedGPT-5.6 set a new all-time high score of 53.6 on the Agent's Last Exam benchmark, surpassing Claude Opus 4.5 by 13.1 points.73% similarUnverifiedOn the SWE-Bench Pro programming benchmark, Claude Fable 5 leads with a score of 80%, ahead of GPT-5.6 Sol's 64.6%.72% similarUnverifiedIn terminal operation tests, Claude Opus 5.5 performs more strongly.71% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/978499API
curl https://kongchang.com/api/v1/knowledge/claims/978499MCP
get_claim(id=978499)