RankingOSWorld · 2.0 September 10, 2026 task release

OSWorld · 2.0 September 10, 2026 task release

Data updated 22 Sept 2026

Bucket: Agentic
Unit: percent
Direction: Higher is better
Version: 2.0 September 10, 2026 task release
Display harness: Claude Opus 5.5 System Card
Board: https://www-cdn.anthropic.com/fc1b44717c85dc068bc6ba5024219938094694bd/Claude%20Opus%205.5%20System%20Card.pdf

The available records have no admitted matched comparison in the capability core. Raw results remain available below.

Compare published benchmark results with category weights →

Models

Published configurations retain their source and harness labels. Missing results remain unknown.

1–2 of 2 entries

Model	Score	Harness	Evidence	Source-recorded date
Claude Opus 5.5Anthropic	81.8% Reported settings & source Partial score, pass@1; 108 tasks; five runs; 1080p; 500 action steps; max reasoning effort; Opus 4.8 grader where required. September 10, 2026 task files and server-side context compaction after 100k tokens. Provider-published lab self-report from the Claude Opus 5.5 system card (SHA256 7311c9c6bbb16d012f1c12c7418b05949fcf7ae3e30d2c40f22050074b2a7378). Not an independent board. Launch grid shows 81.8% partial. Section 8.13.3 says these settings supersede the Fable 5.1 card's OSWorld 2.0 figures. Comparison limit: Provider-published lab self-report. Shown as a labeled claim and not admitted as a matched board comparison. Claude Opus 5.5 System Card · Table 8.1.A; section 8.13.3 · reviewed 2026-09-22	Claude Opus 5.5 System Card	lab self-report	2026-09-22
Claude Opus 5.5Anthropic	48.7% Reported settings & source Strict pass rate, pass@1; 108 tasks; five runs; 1080p; 500 action steps; max reasoning effort; Opus 4.8 grader where required. September 10, 2026 task files and server-side context compaction after 100k tokens. Provider-published lab self-report from the Claude Opus 5.5 system card (SHA256 7311c9c6bbb16d012f1c12c7418b05949fcf7ae3e30d2c40f22050074b2a7378). Not an independent board. Table 8.1.A prints partial/strict as 81.8/48.7. This row is the strict pass rate. Comparison limit: Provider-published lab self-report. Shown as a labeled claim and not admitted as a matched board comparison. Claude Opus 5.5 System Card · Table 8.1.A; section 8.13.3 · reviewed 2026-09-22	Claude Opus 5.5 System Card	lab self-report	2026-09-22