Available Models

The Ultravox API currently provides the following models.

Model	Description
fixie-ai/ultravox	This is an alias that points to `ultravox-70B`. The default if no model is specified when creating a call with the API.
fixie-ai/ultravox-70B	Based on Llama 3.3 70B. Supports tools.
fixie-ai/ultravox-8B	Based on Llama 3.3 8B. Not recommended for most use cases. Tools are unlikely to work.

Model	Description
fixie-ai/ultravox	This is an alias that points to `ultravox-70B`. The default if no model is specified when creating a call with the API.
fixie-ai/ultravox-70B	Based on Llama 3.3 70B. Supports tools.
fixie-ai/ultravox-8B	Based on Llama 3.3 8B. Not recommended for most use cases. Tools are unlikely to work.

Using Models

Each model can be used when creating a call via the API. For example:

// Example request body to create an Ultravox call
{
  "systemPrompt": "You are a helpful assistant...",
  "model": "fixie-ai/ultravox-70B"
}

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