of MiMo-V2.6-Flash's tool calls fail on Cohere.
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.
| # | Model | Broken tool calls | Rank | Best on the model | Tool calls a day |
|---|---|---|---|---|---|
| 1 | Hy4 preview | 0.17% | 4 of 6 | DeepInfra (fp4) 0.10% | 39k |
| 2 | GLM 5.3 Flash | 0.71% | 14 of 34 | NextBit (fp4) 0.00% | 1.1M |
| 3 | DeepSeek V4.1 Flash 1017 | 0.79% | 21 of 35 | Sail Research (fp4) 0.03% | 15k |
| 4 | DeepSeek V4.1 Flash | 0.88% | 23 of 35 | Prime Intellect 0.06% | 110k |
| 5 | DeepSeek V4 Flash 0731 | 1.82% | 12 of 22 | Sail Research (fp4) 0.04% | 192k |
| 6 | MiMo-V2.6-Flash | 2.70% | 4 of 9 | Venice (fp8) 1.41% | 290k |
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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.
on Hy4 preview, its best model.
models, where Cohere is the most reliable provider.