List Models

List the text-to-speech models available for synthesis. Drive a model picker from this response, then pass a model id as the model parameter to POST /v1/audio/speech or /v1/audio/stream. The response marks the default model (used when a request omits model), the routes each model may be passed to, and which voices it accepts. Multi-speaker models arrive in a separate dialogue_models array because they are valid only on POST /v1/audio/dialogue. Returns the full set in a single response: the model catalog is static platform reference data, so it is intentionally not paginated.