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Routing & reliability

Provider routing

A public model can have several provider routes. Without a selector, PicoX applies your access policy and routing settings to select an eligible route.

Select a provider

Append :provider to a public model ID. The selector matches the provider name, ID, or logo slug in the catalog. Only that supplier remains eligible; it does not bypass model access, discounts, or capability checks.

Request
{
  "model": "openai/gpt-6-astra:azure",
  "messages": [
    {
      "role": "user",
      "content": "Explain routing in one sentence."
    }
  ]
}

Priority and failover

Higher-priority channel tiers are tried first. Channels in the same tier share traffic by weight. If a tier fails, eligible channels in the next tier are attempted. Pinning a supplier limits failover to that supplier.

Unavailable routes

Errors
404  provider_route_not_found
503  discount_route_unavailable
400  provider_selector_not_supported

A missing supplier route returns 404. A minimum-discount rule with no eligible route returns 503. Provider selectors cannot be combined with a BYOK connection.

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