←Back to NewsAI News/BenchmarksnewsBenchmarksDevelopmentAnthropic's Claude Opus 5.5 Tops Coding Benchmarks but Costs $13 per TaskAnthropic's newest flagship tops the Coding Agent Index at 66, but burns 37% more tokens per task than its predecessor to get there.SourceArtificial AnalysisPublishedSep 24, 2026, 1:24 AMAuthorAlphaSignal NewsroomRead1 min readAnthropic's newest flagship tops the Coding Agent Index at 66, but burns 37% more tokens per task than its predecessor to get there.Reporting is indexed from AlphaSignal. Rights remain with the original publisher and cited sources.Read original report ↗Next readsTencent Hy · newsTencent's IWC-Bench Actually Runs AI Web Apps to Catch Broken ButtonsCognition · newsCognition Adds xAI's Grok 4.7 to Devin but Warns of Scope CreepBen Dickson · deep-diveUnderstanding the “Harness Tax” Behind Coding Agents
