Opper Blog company blog
“Car Wash” test with 53 models
The car wash test is the simplest AI reasoning benchmark that nearly every model fails. We tested 53 models through Opper, first once each, then 10 times. Only 5 passed consistently.
- Points
- 371
- HN comments
- 447
- Submissions
- 1
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On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Feb 23, 2026 | “Car Wash” test with 53 models by felix089 | 371 | 447 |