What is Grok 4's performance on METR's task length evaluation?
7
Ṁ266
2026
46%
0 to 1.5 Hours
27%
1.5 to 2 Hours
13%
2 to 2.5 Hours
8%
2.5 to 3 Hours
5%
More than 3 Hours

Resolves based on the METR's measurement of the duration of tasks that can complete with a 50% success rate.

https://metr.org/blog/2025-03-19-measuring-ai-ability-to-complete-long-tasks/

Grok 4 Heavy does not count

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