of Granite 4.2 8B's tool calls fail on CoreWeave (bf16).
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.
| # | Provider | Broken tool calls | Tool calls a day | $ in / out per M | Tokens/s | Uptime |
|---|---|---|---|---|---|---|
| 1 | DeepInfrabf16# | 2.00% | 4.5k | $0.06 / $0.25 | 34 | 99.9% |
| 2 | CoreWeavebf16# | 3.71% | 7.8k | $0.06 / $0.15 | 64 | 100.0% |
Recommended OpenRouter settings for Granite 4.2 8B
{
"provider": {
"order": [
"deepinfra/bf16"
],
"ignore": [
"coreweave/bf16"
]
}
}Point your agent at llms.txt
Get updates when its successor drops
And which provider to use.
For model makers
Broken tool calls carry your model's name
Releasing a model? Test it before launch.
as often on CoreWeave (bf16) as on DeepInfra (bf16), its best provider.
broken tool calls a day across its 2 providers.