TTSEngineThe TTSEngine object describes a text-to-speech engine/model available from a provider, including pricing metadata where available. Arrays of these objects are returned by puter.ai.txt2speech.listEngines().
id (String)
The engine/model identifier.
name (String)
A human-readable engine name.
provider (String)
The provider this engine belongs to, e.g. 'aws-polly', 'openai', 'elevenlabs', 'gemini', 'xai'.
pricing_per_million_chars (Number)
An optional cost per million characters. May be absent when the provider does not expose pricing.