Devin Fusion Scores 68 on Coding Agent Index at 31% Lower Cost per Task

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Artificial Analysis reported that Cognition’s Devin Fusion, running Claude Opus 5.5 (max) with a GPT-6 Luna (high) sidekick, scored 68 on the Coding Agent Index—two points above Claude Code with Opus 5.5 (max), at 31% lower cost per task. Devin Fusion pairs a frontier lead model with a lower-cost sidekick model. The reported score and cost advantage apply to this specific configuration and benchmark comparison.

Generated by AI from reports · Updated 54 minutes ago

Latest development10/21 13:10 (UTC+8)

Devin Fusion Scores 68 on the Coding Agent Index at 31% Lower Cost per Task Artificial Analysis · X

Models in this story

Claude Opus 5.5#1 overall$4 input / $20 output per million tokens
GPT-6 Luna$0.1 input / $0.5 output per million tokens

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10/21

13:10
Artificial Analysis · X
Devin Fusion Scores 68 on the Coding Agent Index at 31% Lower Cost per Task
Devin Fusion with Claude Opus 5.5 (max) and a GPT-6 Luna (high) sidekick scores 68 on the Coding Agent Index, 2 points above Claude Code with Opus 5.5 (max) at 31% lower cost per task @cognition's Devin Fusion runs a frontier lead model alongside a lower-cost sidekick model. The https://t.co/12jhRQW1ZG

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