Cognition releases FrontierCode 2.0, a coding benchmark where top model scores 45%
AICognition introduces FrontierCode 2.0, a coding benchmark built with more than 20 open-source maintainers across 55% more repositories. The top-performing model, Claude Opus 5.5, scores 45.5%, down from 54.6% on FrontierCode 1.1.
AIWhy it matters.
The post explains which blocker categories drive scores and how reasoning effort changes results, giving a concrete view of where coding agents still fail.
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Cognition Blog (Devin, Windsurf) · cognition.comPublished · added here
Original title: FrontierCode 2.0