
OpenAI pitched Operator as the browser agent that could finally do work for you. Its own CUA benchmark showed 38.1% success on full computer-use tasks, while independent tests and users found slow navigation, hallucinated contact data, and brittle UI handling.

| Benchmark | What it tests | CUA result | Human / comparison result |
|---|---|---|---|
| OSWorld | Full operating-system tasks | 38.1% 2 | Humans: 72.4% 2 |
| WebArena | Browser tasks in realistic web environments | 58.1% 2 | Humans: 78.2% 2 |
| WebVoyager | Live-web browser tasks | 87.0% 2 | Previous SOTA: 87.0% 2 |

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