CathedralBench
Grok 4.7 29% Only in system cards
Independent third-party red-team evaluation of difficult multi-step exploit-chain tasks in egress-secure sandboxes.
Made by Third party (unnamed in card) Finding and exploiting real bugs Tasks kept private Last in a system card Sep 2026
Last model added Sep 2026
- Level
- Expert Specialists with years of training, often over hours of work
- Scored
- Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
- Answers
- Agent task Many steps in a terminal, browser, desktop, app, game or robot.
1
Model scored in lab cards
1
System card reports it, from 1 lab
Grok 4.7 leads with 29%
Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.
- 1 Grok 4.7 29%
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | Grok 4.7 | 29% | Sep 2026 | Model card |
Scores over time
All the scores we have, one dot each, so a model tested at several settings appears more than once.
Reported by the lab in its model card
Labs report it only in system cards
We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark. Some system cards do, below.
One system card reports it
Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| 21 Sep 2026 | Grok 4.7 model card | 29 | CathedralBench, accuracy on hard subset, xhigh, unrestricted (6.4) | Cyber risk |
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