Call the ElevenLabs Eleven v4 API for expressive text-to-speech. Up to 2,000 characters per request, $0.08 per 1,000 characters, async polling and webhooks.
Eleven v4 is ElevenLabs' latest text-to-speech model, delivering highly expressive, natural single-voice narration. Send up to 2,000 characters and get back a studio-quality MP3 — ideal for voiceovers, audiobooks, ads and app audio.
About this model
Eleven v4 is ElevenLabs' newest text-to-speech model, built for expressive, human-sounding narration. Through Muapi you call it with a single endpoint, pick a voice, and receive a hosted MP3 asynchronously via polling or webhook.
Up to 2,000 characters per request makes it a strong fit for voiceovers, ad reads, short audiobooks and in-app narration.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $0.08 / 1K chars | $0.08 per 1,000 characters, matching ElevenLabs' official API price. |
$0.08 per 1,000 characters, matching ElevenLabs' official API price.
** Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | string | Text to speak (up to 2,000 characters). | Welcome to the future of voice. This is Eleven v4, speaking with natural rhythm and emotion. |
| Voice | Enum (2 options) | Voice to use for the narration. | voice_daniel |
Text to speak (up to 2,000 characters).
Welcome to the future of voice. This is Eleven v4, speaking with natural rhythm and emotion.Voice to use for the narration.
voice_danielDeveloper documentation
prompt.voice_id (voice_daniel or voice_liam)./api/v1/elevenlabs-v4 with your x-api-key; you receive a request_id./api/v1/predictions/{request_id}/result or pass a webhook URL to be notified when the MP3 is ready.Frequently asked
Up to 2,000 characters per request.
A hosted MP3 file.
$0.08 per 1,000 characters, matching ElevenLabs' official API price.