# ClockBench

ClockBench is an AI benchmark; this page records what it measures and traces its data, grader, and scores to primary sources.

Evaluates whether vision-language models can read analog clocks across varied faces and times.

## Details

- Address: Online, Global
- Website: [clockbench.ai/](<https://clockbench.ai/>)
- Tags: Viral, Science
- Category: Multimodal
- Status: Active
- Data licence: MIT
- Data access: gated
- Grader: exact
- Organization: Alek Safar
- Released: 2025-09
- Paper: [clockbench.ai/ClockBench.pdf](<https://clockbench.ai/ClockBench.pdf>)
- Leaderboard: [clockbench.ai/](<https://clockbench.ai/>)
- Repository: [github.com/aleksafar/clockbench](<https://github.com/aleksafar/clockbench>)
- Task count: 720
- Top-score provenance: independent
- Top score: 77.2%
- Top-score source: [clockbench.ai/](<https://clockbench.ai/>)
- ABI family: No

## Questions

### Where is ClockBench?

ClockBench is at Online, Global.

### How do I contact ClockBench?

To contact ClockBench, visit https://clockbench.ai/.

## Source

From [Benchmark primary sources](https://aibenchmarkindex.com/about), license CC0-1.0, checked 2026-10-15.

Last updated October 15, 2026.

## Links

- This benchmark on the [web page](<https://aibenchmarkindex.com/global/online/clockbench>)
- [Multimodal in Online](<https://aibenchmarkindex.com/global/online/category/multimodal.md>)
- [More benchmarks in Online](<https://aibenchmarkindex.com/global/online.md>)

> **Check before you compare.** Benchmark methods and leaderboards change. Follow the cited primary source before using a result in a decision.