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Phaseo routes your application’s model requests to providers through one API. Your application chooses a model and endpoint; workspace settings and request controls determine which providers can serve it.

Models and providers

A model is the system generating the output. A provider hosts that model and determines availability, supported parameters, pricing, and performance. The same model can have several provider offers. The public catalog also includes models that are not currently available through the Gateway. Check model availability before using an ID in a request.

Requests and routing

Use Responses, Chat Completions, or Messages according to your application’s protocol. Provider-specific capabilities still vary; a common endpoint does not mean every model supports every parameter. Routing controls let you restrict providers and choose how they are ranked. Fallbacks remain subject to your restrictions and available capacity; they do not guarantee success.

Billing and access

Managed requests use your Phaseo workspace balance. :free models can run without deposited credits. With provider credentials (BYOK), provider billing and account limits apply; review pricing and billing before rollout. Video and batch jobs return a job before processing finishes. Their preview access is managed per workspace. Poll for status or receive webhook updates, then download the result.

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Last modified on October 18, 2026