Eleven v4 - GENGEN API

Expressive text to speech with measured character billing.

Model ID

eleven_v4

Pass this exact public ID in the top-level model field.

Supported modes

text_to_speech
text_to_dialogue

Inputs

Text

Outputs

Audio

Capabilities

text_to_speech
text_to_dialogue

Additional capabilities

Speech generation
HTTP audio streaming
Complete-turn WebSocket

Technical details

Property	Value
Model family	`ElevenLabs`
Modality	`audio`
Processing	`Synchronous, streaming, asynchronous task and complete-turn WebSocket`
Endpoint	`/api/gengen/v1/audio/generations`
Streaming	`HTTP audio and complete-turn WebSocket`

Availability and final customer prices can change. Check the Dashboard model catalog before production use.

See the Audio API guide for voice selection, formats, metering, callbacks and WebSocket sessions. Maximum 2,000 characters per generation. Try Eleven v4 in API Explorer. See the API reference overview for authentication, request conventions, and response schemas.