Benchmarks / Codebase evolution

Codebase evolution

Improve a codebase over many rounds toward a goal, not one ticket.

Part of Software engineering.

• CodeClashby Stanford University and Princeton UniversityProject level · Elo (all arenas)

  1385 EloClaude Sonnet 4.5 · 3 Nov 2025

  Unrated
• Will It Survive? Agent code survival studyby Concordia UniversityTask level · Line-level modification (death) rate

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