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Composite-Bench

Composite-Bench, a long-horizon browser-based computer-use benchmark built from deterministic enterprise-web environments, scores AI agents on pass@1 against certified optimal solutions across five headline slices and a sixth number-partitioning slice with a separate reward ladder. Claude Fable 5 ranks first with a score of 74 on the top imported result.

read1 min views1 publishedJul 24, 2026

Long-horizon browser-based computer-use benchmark built from deterministic enterprise-web environments. Its five headline slices score pass@1 against certified optimal solutions, while a sixth number-partitioning slice reports a separate reward ladder for deliberately intractable tasks. Category: Agentic. Imported rows: 8. Top imported result: Claude Fable 5, rank 1, 74.

source & further reading
benchmarklist.com — original article Founder Bench Show HN: Benchmarklist: track AI benchmarks (2.4k+), models, and capabilities WANDR
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