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AI text-to-speech platform producing natural-sounding voice audio with voice cloning, multilingual support, and emotional expression control. Best for workflows needing high-quality voice synthesis — narration, accessibility features, and voice-enabled applications. The leading TTS provider for naturalness — unlike Soniox (speech-to-text), ElevenLabs converts text to speech with human-like intonation. 7 endpoints available through Lava’s AI Gateway. See the ElevenLabs API docs for full documentation.
Supports both managed (Lava’s API keys) and unmanaged (bring your own credentials) mode.

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Endpoints

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Text to speech with streaming and timestamps

POST https://api.elevenlabs.io/v1/text-to-speech/{id}/stream/with-timestamps
ModelInput / 1M charsOutput / 1M chars
eleven_ttv_v3$2.40$2.40
eleven_multilingual_v2$2.40$2.40
eleven_multilingual_ttv_v2$2.40$2.40
eleven_monolingual_v1$2.40$2.40
eleven_multilingual_v1$2.40$2.40
eleven_flash_v2_5$1.20$1.20
eleven_flash_v2$1.20$1.20
eleven_turbo_v2_5$1.20$1.20
eleven_turbo_v2$1.20$1.20

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Text to speech with streaming

POST https://api.elevenlabs.io/v1/text-to-speech/{id}/stream
ModelInput / 1M charsOutput / 1M chars
eleven_ttv_v3$2.40$2.40
eleven_multilingual_v2$2.40$2.40
eleven_multilingual_ttv_v2$2.40$2.40
eleven_monolingual_v1$2.40$2.40
eleven_multilingual_v1$2.40$2.40
eleven_flash_v2_5$1.20$1.20
eleven_flash_v2$1.20$1.20
eleven_turbo_v2_5$1.20$1.20
eleven_turbo_v2$1.20$1.20

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Text to speech with timestamps

POST https://api.elevenlabs.io/v1/text-to-speech/{id}/with-timestamps
ModelInput / 1M charsOutput / 1M chars
eleven_ttv_v3$2.40$2.40
eleven_multilingual_v2$2.40$2.40
eleven_multilingual_ttv_v2$2.40$2.40
eleven_monolingual_v1$2.40$2.40
eleven_multilingual_v1$2.40$2.40
eleven_flash_v2_5$1.20$1.20
eleven_flash_v2$1.20$1.20
eleven_turbo_v2_5$1.20$1.20
eleven_turbo_v2$1.20$1.20

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Convert text to speech

POST https://api.elevenlabs.io/v1/text-to-speech/21m00Tcm4TlvDq8ikWAM
ModelInput / 1M charsOutput / 1M chars
eleven_ttv_v3$2.40$2.40
eleven_multilingual_v2$2.40$2.40
eleven_multilingual_ttv_v2$2.40$2.40
eleven_monolingual_v1$2.40$2.40
eleven_multilingual_v1$2.40$2.40
eleven_flash_v2_5$1.20$1.20
eleven_flash_v2$1.20$1.20
eleven_turbo_v2_5$1.20$1.20
eleven_turbo_v2$1.20$1.20
const data = await lava.gateway('https://api.elevenlabs.io/v1/text-to-speech/21m00Tcm4TlvDq8ikWAM', { body: {"text":"Hello world","model_id":"eleven_flash_v2_5"} });

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Transcribe speech to text

POST https://api.elevenlabs.io/v1/speech-to-text
ModelInput / minuteOutput / minute
scribe_v1$0.01Free
scribe_v1_experimental$0.01Free
const data = await lava.gateway('https://api.elevenlabs.io/v1/speech-to-text', { method: 'POST' });

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List available voice models

GET https://api.elevenlabs.io/v1/models — Free 
const data = await lava.gateway('https://api.elevenlabs.io/v1/models', { method: 'GET' });

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Initiate a conversational AI outbound phone call via Twilio

POST https://api.elevenlabs.io/v1/convai/twilio/outbound-call — $1.50 / request 
const data = await lava.gateway('https://api.elevenlabs.io/v1/convai/twilio/outbound-call', { method: 'POST' });

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