Eleven v4 is a speech synthesis model from ElevenLabs and its highest-quality, most expressive option, with inline audio tags for emotional and delivery control over how voices are performed. It supports 90+ languages and has a 10,000-character request limit, and offers high-fidelity voice cloning that keeps the speaker consistent across long text generations.
$0.04
Share of requests served without a server error. Client errors (4xx) do not count.
Works with the OpenAI SDK pointed at our base URL. Every parameter is in the API reference.
Characters of text spoken per day on NagaAI, counted since November 2026.
Eleven v4 is a speech synthesis model from ElevenLabs and its highest-quality, most expressive option, with inline audio tags for emotional and delivery control over how voices are performed.
On NagaAI, Eleven v4 costs about $0.04 per 1k chars. You pay only for what you use, with no subscription.
It takes text as input and returns audio.
Create an API key, copy the model ID from the top of this page and send requests with the OpenAI SDK pointed at NagaAI. The API section on this page has a ready example.
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