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Sign InIntelligence
Artificial Analysis Intelligence Index
The most-cited composite intelligence score: a 0–100 index combining knowledge, reasoning, math, coding, and agentic evaluations (GPQA Diamond, HLE, IFBench, SciCode, Terminal-Bench Hard, τ²-Bench, and more). Higher is better.
LeaderClaude Fable 564.9
Coding
CursorBench 3.1
Ambiguous, multi-file tasks from real Cursor sessions that test codebase understanding, bugfinding, planning, and code review.
LeaderClaude Fable 572.9%
Coding
FrontierCode Diamond
The 50 hardest FrontierCode tasks: the toughest production-code problems, graded on whether maintainers would merge the patch. Scores stay low by design. Higher is better.
LeaderClaude Opus 4.813.4%
Coding
FrontierCode Main
Cognition's test of whether a model writes code maintainers would actually merge, not just code that passes tests. Main is the 100 hardest of 150 tasks. Higher is better.
LeaderClaude Fable 546.3%