ElevenLabs/OS
Start building
00Resonance OS · build 11.4.20

Synthesize the
human voice.

The runtime for synthetic sound. Generate, clone, and orchestrate human-grade audio across 32 languages with the lowest latency in the industry — p50 412ms.

Start building freeWatch the demo
Voices
6,412
Languages
32
p50 Latency
412ms
Live synthesis · ElevenLabs
model · multilingual_v2
130/400 chars
Voice
Speed1.00x
00:00.000idle • 48khz
RachelNarration · EN-US
progress0%
Trusted by 60% of Fortune 500 audio teams
  • WASHINGTON POST
  • TIME
  • HARPERCOLLINS
  • DISNEY
  • BBC
  • NEW YORK TIMES
  • EPIC GAMES
  • BLOOMBERG
01Product surface

Seven instruments. One runtime.

Every surface shares the same model graph, the same telemetry, and the same SDK. Compose them however you ship.

Text to Speech

Render human-grade narration in 32 languages with controllable emotion, pacing, and timbre.

Resonance v3 · 192kbps

Voice Cloning

Capture a voice from 30 seconds of audio. Render it forever, with consent and watermarking.

Instant · Professional

Dubbing

Translate and lip-match video into 29 languages while preserving the original speaker's voice.

29 languages

Conversational Agents

Sub-300ms turn-taking with native interrupt handling. Build voice agents your users won't hang up on.

p50 287ms

Sound Effects

Generate cinematic SFX, foley, and ambience from a prompt. Stems included.

Prompt → 48kHz

Music

Compose stems and full tracks with controllable mood, tempo, and instrumentation.

BPM · Key · Stems

Studio

A timeline editor for long-form audio. Multitrack, scriptable, and collaborative.

Multitrack · Scripted
  • Hours synthesized
    0+
  • Voices in library
    0
  • Languages
    0
  • p50 latency
    0ms
02Voice library

6,412 voices.
Each one tunable to a tenth of a semitone.

Browse all voices
001EN-US
ready

Atlas

Warm, deliberate baritone built for documentary and long-form audio.

NarrationDocumentaryAudiobookMale · Mature · American
002EN-GB
ready

Luma

Bright and articulate. Engineered for assistants and product UIs.

AssistantProductUIFemale · Young · British
003EN-US
ready

Onyx

Cinematic low end with an unhurried cadence. Best for trailers and intros.

CinematicTrailerBrandMale · Mature · American
004ES-LA
ready

Vega

Crisp, neutral Spanish with broadcast-grade diction across long runs.

NewsBroadcastCorporateFemale · Middle-aged · Latin American
03Developers

An SDK that disappears into your stack.

First-class clients for Node, Python, Go, Rust, and the browser. WebSocket streaming, low-latency mode, server-sent events, and a public OpenAPI schema.

  • 01Streaming with first-byte under 250ms in 4 regions
  • 02Idempotent requests, signed webhooks, and granular keys
  • 03Watermarked output with C2PA-compliant provenance
  • 04Open-source SDKs, public changelog, semver guarantees
Read the docsAPI reference
import { ElevenLabs } from "@elevenlabs/sdk"

const client = new ElevenLabs({ apiKey: process.env.ELEVEN_API_KEY })

const audio = await client.speech.create({
  voice: "atlas",
  model: "resonance-v3",
  text: "The future of synthetic sound is now in your hands.",
  format: "mp3_44100_192",
  latency: "low",
})

await audio.pipe(process.stdout)
POST /v3/speech200 OK · 248ms · 192kbps
04Enterprise

Built for the teams that ship to billions.

Dedicated capacity, regional residency, and a security posture that survives procurement. Talk to us about volume pricing, custom voices, and on-prem deployment.

Contact salesTrust center

  • SOC 2 Type II

    Annual audits, continuous monitoring, and a public trust portal with real-time controls.

  • Zero-retention mode

    Inputs and outputs discarded at the edge. No training on customer data, ever.

  • Regional residency

    Pin synthesis to US, EU, JP, or AU. BYOC available on dedicated capacity.

  • Provenance & C2PA

    Every output carries cryptographic provenance and inaudible watermarking.

// Ready when you are

Render the
unwritten.

Start with 10,000 free characters and a public API key. No credit card. Production capacity unlocks the moment you ship.

Start building freeTalk to sales