Updated October 29, 2026

Tool-call index

Not all models are served equally by all providers. On a typical model, the worst provider breaks tool calls 19× as often as the best. Find the best one for your agents.

openrouter-data-staging.dottxt.workers.dev/llms.txt

← All providers

2 models · 4.5M tool calls a day

#	Model	Broken tool calls	Rank	Best on the model	Tool calls a day
1	MiMo-V2.6-Flashfp8	1.71%	2 of 9	Venice (fp8) 1.41%	3.8M
2	MiMo-V2.6-Profp8	4.59%	3 of 4	DeepInfra (fp8) 1.48%	656k

New models

Get updates when a new model drops

And which provider to use.

For inference providers

Tool calling doesn't have to break

The same provider can handle tool calls well on one model and struggle on the next.

Worst model4.59%

of MiMo-V2.6-Pro's tool calls fail on Xiaomi (fp8).

Best model1.71%

on MiMo-V2.6-Flash, its best model.

Ignored on1 of 2

models, where the settings tell OpenRouter to skip Xiaomi.

Fix this with dottxt↵