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Clockbench

Frontier

ClockBench: multimodal clock reading and reasoning benchmark implemented for verifiers.

Domain
rl-env
License
unknown
Published
Mar 2026

Cite

Notes

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Attribution

Leaderboard scores
prime-hub
Attribution policy →

Top score 40.0% by GPT-4.1 Mini - 5 models reporting (5 frontier)

Score history

5
0%25%50%75%100%Jul 24Oct 24Jan 25Apr 25Jul 25GPT-4o-miniGPT-4.1 NanoGPT-4.1 Mini

Top models

5
ClockbenchBar chart with 5 bars. Highest value: GPT-5 Mini at 40.
5 models

Related tools

1
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Implementations, trainers, datasets and scaffolds linked to this eval.

FAQ

What is Clockbench?
ClockBench: multimodal clock reading and reasoning benchmark implemented for verifiers.
What is the current top score on Clockbench?
The top reported score is 40.0% by GPT-4.1 Mini, across 5 models reporting (5 from frontier labs).
How can a model improve its Clockbench score?
Tools linked to Clockbench on Sophon include Clockbench RL Env (Prime Community) - RL environments, datasets, and scaffolds that target this eval.
What license is Clockbench under?
Clockbench is available under unknown.