Hume

HumeSpeechModel conforms to SpeechModel and works with generateSpeech.

let result = try await generateSpeech(
  model: HumeSpeechModel(),
  text: "I can't believe we made it!",
  voice: voiceID,
  instructions: "Relieved, warm, and slightly breathless",
  outputFormat: "mp3"
)

The model reads HUME_API_KEY and uses https://api.hume.ai. voice: maps to the Hume voice ID, instructions: becomes the utterance description, and speed: controls utterance speed. The default model ID is default because the voice and utterance settings drive the request.

Model selection

Hume's TTS endpoint does not expose a separate model catalog or accept a model ID in this request. HumeSpeechModel keeps default only as its SDK identity; select a saved or library voice with voice:. See Hume's voice selection documentation.