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SWE Atlas - Test Writing — leaderboard

SWE Atlas Test Writing evaluates coding agents on writing production-grade tests for specific behaviors in real-world software repositories.

Source: labs.scale.com. Status: saturation imminent.

Interactive version: theaggregate.ai/benchmark?slug=swe-atlas-test-writing · How the rankings work · Data refreshed daily, snapshot 2026-07-22.

Built by Mikhail Doroshenko — AI researcher, co-author of Humanity’s Last Exam. Independent project; no affiliation with any AI lab.