of Beam 1.0 501B A23B's tool calls fail on CoreWeave (fp4).
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 | Together# | 1.01% | 15k | $0.40 / $1.20 | 244 | 99.3% |
| 2 | Nebius Token Factoryfp4# | 1.35% | 142k | $0.25 / $1.00 | 324 | 99.2% |
| 3 | CoreWeavefp4# | 6.52% | 21k | $0.30 / $1.00 | 206 | 99.8% |
Recommended OpenRouter settings for Beam 1.0 501B A23B
{
"provider": {
"order": [
"together",
"nebius/fp4"
],
"ignore": [
"coreweave/fp4"
]
}
}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 (fp4) as on Together, its best provider.
broken tool calls a day across its 3 providers.