OSWorld 2 August 2026 with Anthropic fixes, 500-step partial
Agents
Mean checkpoint partial credit on the full 108-task August 2026 OSWorld 2 release with subsequent author task fixes and Anthropic-reported setup and grading fixes. Uses 500 actions, 1080p screenshots and five independent runs per task; kept diagnostic because the exact unpublished patch set differs from the official released cohorts.
Top models (higher is better)
| Model | Score |
|---|---|
| Claude Fable 5.1 | 77.9 |