1Router.com routes requests to the best available providers for your model, given your preferences. By default, requests are load balanced across the top providers to maximize uptime, but you can customize how this works using the provider object in the request body.

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Load Balancing

For each model in your request, 1Router.com’s default behavior is to load balance requests across providers with the following strategy:
  • Prioritize providers that have not seen significant outages in the last 10 seconds.
  • For the stable providers, select the lowest-cost candidates and choose one weighted by price.
  • Use the remaining providers as fallbacks.

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Example Scenario

Let’s say:
  • Provider A charges $1/million tokens.
  • Provider B charges $2/million tokens.
  • Provider C charges $3/million tokens.
  • Provider B recently experienced outages.
In this scenario:
  • Your request is 3x more likely to be routed first to Provider A than to Provider C.
  • If Provider A fails, Provider C will be tried next.
  • If both providers fail, Provider B will be tried last.

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Custom Routing

You can customize which providers 1Router.com will prioritize for your request using the order field. The router will follow the priority list for the model you’re using. If you don’t specify this field, the router will load balance across the top providers to maximize uptime. 1Router.com will attempt the providers in your specified order and proceed to other providers if none are operational. To restrict routing strictly to your preferred providers, you can disable fallbacks.

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Example Custom Routing

The following example skips OpenAI (which doesn’t host Mixtral), tries Together, and then falls back to the default provider list on 1Router.com: 
{
  "model": "your-model",
  "provider": {
    "order": ["Together", "OtherProvider"]
  },
  "disableFallbacks": false
}