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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.

← All providers
12 models · 927k tool calls a day
#ModelBroken
tool calls
RankBest on
the model
Tool calls
a day
1Kimi K30.17%14 of 24DeepInfra (mxfp4) 0.01%129k
2DeepSeek V4 Pro 08130.75%9 of 21Ionstream 0.04%2.2k
3DeepSeek V3.20.76%3 of 4SiliconFlow (fp8) 0.60%3.0k
4Qwen3.8 27B0.86%9 of 21Darkbloom (fp4) 0.07%47k
5GLM 5.3 Flashnvfp40.89%15 of 34NextBit (fp4) 0.00%612k
6Hy31.71%4 of 5Tencent Cloud (fp8) 1.46%5.9k
7DeepSeek V4.1 Flash 10171.92%29 of 35Sail Research (fp4) 0.03%64k
8DeepSeek V4.1 Flash2.74%33 of 35Prime Intellect 0.06%32k
9GLM 5.34.43%40 of 42Amazon Bedrock 0.08%7.3k
10Qwen3.6 35B A3B5.75%6 of 6AkashML (fp8) 1.63%8.0k
11DeepSeek V4 Flash 07317.10%20 of 22Sail Research (fp4) 0.04%9.8k
12Qwen3.5 397B A17B11.30%7 of 7Alibaba Cloud Int. 0.58%6.1k
New models

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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 model11.30%

of Qwen3.5 397B A17B's tool calls fail on Phala.

Best model0.17%

on Kimi K3, its best model.

Ignored on4 of 12

models, where the settings tell OpenRouter to skip Phala.