POST /v1/audio serves both speech and music; the model decides which, and the fields you send
differ.
Speech
Sendtext and a voice_name (or a voice id from your workspace). ElevenLabs Multilingual v2 and
Turbo v2.5 cover most languages; v3 understands expressive cues in the text. Long scripts can be
split into segments with different voices for dialogue.
Music
Send aprompt describing style, mood and instrumentation. Lyria takes tag-style prompts with
energy and tempo; ElevenLabs Music (music_v1 / music_v2) takes free text, an instrumental
toggle, and lyrics with [Verse] / [Chorus] markers.
Pricing is per character for speech and per generation for music; estimate with character_count
for speech. Voice-specific tips: the ElevenLabs prompting guide.