Artificial Analysis Ranks Claude Opus 5.5 First in Tougher Coding Agent Index

A new coding agent leaderboard swaps in Cognition's FrontierCode benchmark and tightens Q&A grading, reshuffling the top of the charts.

Source

Artificial Analysis

Published

Oct 23, 2026, 12:17 AM

Author

AlphaSignal Newsroom

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1 min read

A new coding agent leaderboard swaps in Cognition's FrontierCode benchmark and tightens Q&A grading, reshuffling the top of the charts.

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