STATE-Bench
GPT-5.5 58.9% Not in model cards
Agents work multi-step enterprise tasks in travel, customer support and shopping with a sandbox database, domain tools and a simulated user. They must apply the right policy.
450 tasks. A second Agent Learning Track adds train trajectories and a retrieval hook for memories or skills. Reports pass@1, pass^5 and a UX rating.
Made by Microsoft Released May 2026 Customer service All tasks public
Last model added Apr 2026
Scores refreshed 2 Nov 2026
- Level
- Expert Specialists with years of training, often over hours of work
- Scored
- Graded by a model A language model scores each response, usually against a rubric.
- Answers
- Agent task Many steps in a terminal, browser, desktop, app, game or robot.
2
Models scored on its own leaderboard
GPT-5.5 leads with 58.9%
Best score per model from the benchmark's own leaderboard, read on 2 Nov 2026. Where a model ran with several settings or harnesses, we keep its best.
- 1 GPT-5.5 high 58.9%
- 2 GPT-5.4 high 58.6%
Scores over time
All the scores we have, one dot each, so a model tested at several settings appears more than once.
On the benchmark’s own leaderboard
Best so far
No lab model card reports it yet
We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark.
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