Artificial Analysis launches Coding Agent Index v2.0 across 290 tasks

The updated index weights Cognition’s FrontierCode v1.1, Laude Institute’s Terminal-Bench 4.0 and Scale AI’s revised SWE-Atlas-QnA-AA equally, with Claude Opus 5.5 in Claude Code leading at 61.7.

Edited by Ashutosh Shrivastava
22 Oct 2026, 23:55 IST · 1 min read

Logo: Artificial AnalysisCover by AI Compass

Artificial Analysis released Coding Agent Index v2.0, evaluating model-and-harness combinations across 290 tasks weighted equally across Cognition’s FrontierCode v1.1 (100 tasks, replacing DeepSWE v1.1), Laude Institute’s Terminal-Bench 4.0 (66 tasks) and Scale AI’s revised SWE-Atlas-QnA-AA (124 tasks, graded by GPT-6 Luna xhigh). Claude Opus 5.5 (max) in Claude Code leads at 61.7 ($11.42 average cost per task), followed by Claude Sonnet 5.5 in Claude Code (59.3) and Muse Wonder Full in Muse Code (58.9).

Sources

PrimaryArtificial Analysis: Coding Agents overviewartificialanalysis.ai
On XArtificial Analysis (@ArtificialAnlys) on Xx.com

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