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Claude Opus 5.5 gets the top score of 52% on FrontierCode 1.1

Artificial Analysis found that no model completes 9 of the 100 tasks.

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  1. @ArtificialAnlys: We're launching our leaderboard for FrontierCode 1.1, a private evaluation from Cognition that tests models on completing coding tasks in a way that would actually get merged by mainx.com
AI MATTER · NEWS · AI MATTER · NEWS ·12 OCT2026

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