A 2025 map of computer use agent benchmarks, from ScreenSpot to Mind2Web, REAL, OSWorld and CUB, and how harness design now rivals model quality.

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This article maps today’s computer use benchmarks across three layers (UI grounding, web agents, full OS use), shows how a few anchors like ScreenSpot, Mind2Web, REAL, OSWorld and CUB are emerging, explains why scaffolding and harnesses often drive more gains than model size, and gives practical guidance on which evals to use if you are building GUI models, web agents, or full computer use agents.