Tools

What it measures

How well a model uses tools to finish a multi-step job. The source calls this agentic.

Limits

A blank is not a zero. It means OpenRouter had no agentic index for that model. The index is not whether you have a harness installed.

Source

The Artificial Analysis index, copied from the OpenRouter listing when the board was fetched. FitStack does not rescore the model. Artificial Analysis. Copied on 2026-10-03.

How to read it

Higher is stronger on this index. Sort the cloud board by tools to see the order. A missing number sorts last.

See it on the boards