# Text to Speech ## Overview ElevenLabs [Text to Speech (TTS)](/guides/changelog-api-reference-text-to-dialogue-convert) API turns text into lifelike audio with nuanced intonation, pacing and emotional awareness. [Our models](/guides/overview-models) adapt to textual cues across 32 languages and multiple voice styles and can be used to: - Narrate global media campaigns & ads - Produce audiobooks in multiple languages with complex emotional delivery - Stream real-time audio from text Listen to a sample: Explore our [voice library](https://elevenlabs.io/app/voice-library) to find the perfect voice for your project. :::callout{intent="warning"} The voice library is not available via the API to free tier users. ::: ::::card-grid :::card{title="Products" href="/guides/elevencreative-playground-text-to-speech"} Step-by-step guide for using text to speech in ElevenLabs. ::: :::card{title="Developers" href="/guides/changelog-eleven-api-quickstart"} Learn how to integrate text to speech into your application. ::: :::card{title="API reference" href="/guides/changelog-api-reference-text-to-dialogue-convert"} Full API reference for the Text to Speech endpoint. ::: :::card{title="MCP" href="/guides/elevenagents-operate-hosted-mcp"} Generate speech from Claude or any MCP client with the hosted MCP server. ::: :::card{title="Eleven v4" href="/guides/overview-capabilities-text-to-speech-eleven-v4"} What changed in Eleven v4, with voice cloning comparisons. ::: :::: ### Voice quality For real-time applications, Flash v2.5 provides ultra-low 75ms latency, while Multilingual v2 delivers the highest quality audio with more nuanced expression. ::::card-grid :::card{title="Eleven v4" href="/guides/overview-models#eleven-v4"} Our most emotive, high quality speech synthesis model Exceptional voice cloning capabilities 90+ languages supported 10,000 character limit Support for natural multi-speaker dialogue ::: :::card{title="Eleven v4 Turbo" href="/guides/overview-models#eleven-v4-turbo"} Our most emotive, real-time speech synthesis model Ultra-low latency (median inference latency of \~100ms†) Exceptional voice cloning capabilities 90+ languages supported Audio tags for fine-grained control ::: :::card{title="Eleven v3" href="/guides/overview-models#eleven-v3"} Our emotionally rich, expressive speech synthesis model Dramatic delivery and performance 70+ languages supported 5,000 character limit Support for natural multi-speaker dialogue ::: :::card{title="Eleven v3 Conversational" href="/guides/overview-models#eleven-v3-conversational"} Our expressive, realtime speech synthesis model Low latency (\~280ms) Dramatic delivery and performance 70+ languages supported Audio tags for fine-grained control ::: :::card{title="Eleven Multilingual v2" href="/guides/overview-models#multilingual-v2"} Lifelike, consistent quality speech synthesis model Natural-sounding output 29 languages supported 10,000 character limit Most stable on long-form generations ::: :::card{title="Eleven Flash v2.5" href="/guides/overview-models#flash-v25"} Our fast, affordable speech synthesis model Ultra-low latency (\~75ms†) 32 languages supported 40,000 character limit Faster model, 50% lower price per character for API generations ::: :::: [Explore all](/guides/overview-models) ### Voice options ElevenLabs offers thousands of voices across 32 languages through multiple creation methods: - [Voice library](/guides/overview-capabilities-voices) with 3,000+ community-shared voices - [Professional voice cloning](/guides/overview-capabilities-voices#cloned) for highest-fidelity replicas - [Instant voice cloning](/guides/overview-capabilities-voices#cloned) for quick voice replication - [Voice design](/guides/overview-capabilities-voices#voice-design) to generate custom voices from text descriptions Learn more about our [voice options](/guides/overview-capabilities-voices). ::::accordion{title="Supported output formats"} The default response format is `mp3`, but other formats like `pcm` and `ulaw` are available. - **MP3** - Sample rates: 22.05kHz - 44.1kHz - Bitrates: 32kbps - 192kbps - 22.05kHz @ 32kbps - 44.1kHz @ 32kbps, 64kbps, 96kbps, 128kbps, 192kbps - **PCM (S16LE)** - Sample rates: 16kHz - 44.1kHz - Bitrates: 8kHz, 16kHz, 22.05kHz, 24kHz, 44.1kHz, 48kHz - 16-bit depth - **μ-law** - 8kHz sample rate - Optimized for telephony applications - **A-law** - 8kHz sample rate - Optimized for telephony applications - **Opus** - Sample rate: 48kHz - Bitrates: 32kbps - 192kbps :::callout{intent="success"} Higher quality audio options are only available on paid tiers - see our [pricing page](https://elevenlabs.io/pricing/api) for details. ::: :::: ### Supported languages Our multilingual v2 models support 29 languages: _English (USA, UK, Australia, Canada), Japanese, Chinese, German, Hindi, French (France, Canada), Korean, Portuguese (Brazil, Portugal), Italian, Spanish (Spain, Mexico), Indonesian, Dutch, Turkish, Filipino, Polish, Swedish, Bulgarian, Romanian, Arabic (Saudi Arabia, UAE), Czech, Greek, Finnish, Croatian, Malay, Slovak, Danish, Tamil, Ukrainian & Russian._ Flash v2.5 supports 32 languages - all languages from v2 models plus: _Hungarian, Norwegian & Vietnamese_ Simply input text in any of our supported languages and select a matching voice from our [voice library](https://elevenlabs.io/app/voice-library). For the most natural results, choose a voice with an accent that matches your target language and region. ### Prompting The models interpret emotional context directly from the text input. For example, adding descriptive text like “she said excitedly” or using exclamation marks will influence the speech emotion. Voice settings like Stability and Similarity help control the consistency, while the underlying emotion comes from textual cues. Read the [prompting guide](/guides/overview-capabilities-text-to-speech-best-practices) for more details. :::callout{intent="note"} Descriptive text will be spoken out by the model and must be manually trimmed or removed from the audio if desired. ::: ## FAQ :::accordion{title="Can I clone my own voice?"} Yes, you can create [instant voice clones](/guides/overview-capabilities-voices#cloned) of your own voice from short audio clips. For high-fidelity clones, check out our [professional voice cloning](/guides/overview-capabilities-voices#cloned) feature. ::: :::accordion{title="Do I own the audio output?"} Yes. You retain ownership of any audio you generate. However, commercial usage rights are only available with paid plans. With a paid subscription, you may use generated audio for commercial purposes and monetize the outputs if you own the IP rights to the input content. ::: :::accordion{title="What qualifies as a free regeneration?"} A free regeneration allows you to regenerate the same text to speech content without additional cost, subject to these conditions: - You can regenerate each piece of content up to 2 times for free - The content must be exactly the same as the previous generation. Any changes to the text, voice settings, or other parameters will require a new, paid generation Free regenerations are useful in case there is a slight distortion in the audio output. According to ElevenLabs’ internal benchmarks, regenerations will solve roughly half of issues with quality, with remaining issues usually due to poor training data. ::: :::accordion{title="How do I reduce latency for real-time cases?"} Use the low-latency Flash [models](/guides/overview-models) (Flash v2 or v2.5) optimized for near real-time conversational or interactive scenarios. See our [latency optimization guide](/guides/elevenapi-guides-how-to-best-practices-latency-optimization) for more details. ::: :::accordion{title="Why is my output sometimes inconsistent?"} The models are nondeterministic. For consistency, use the optional [seed parameter](/guides/changelog-api-reference-text-to-dialogue-convert#request.body.seed), though subtle differences may still occur. ::: :::accordion{title="What's the best practice for large text conversions?"} Split long text into segments and use streaming for real-time playback and efficient processing. To maintain natural prosody flow between chunks, include [previous/next text or previous/next request id parameters](/guides/changelog-api-reference-text-to-dialogue-convert#request.body.previous_text). ::: ## Key facts - **Determinism**: Output is nondeterministic — use the `seed` parameter for more consistent results - **Free regenerations**: Up to 2 free regenerations per generation (same content and parameters only) - **Ownership**: You retain ownership of generated audio; commercial use requires a paid plan - **Low-latency use cases**: Use Flash models (`eleven_flash_v2` or `eleven_flash_v2_5`) — see the [latency optimization guide](/guides/elevenapi-guides-how-to-best-practices-latency-optimization) - **Large text**: Split long text into segments; use the `previous_text` / `next_text` parameters to maintain natural prosody across chunks ## Related pages - [Administration](./administration-index.md) - [API reference](./api-reference-index.md) - [Changelog](./changelog-index.md) - [ElevenAgents](./elevenagents-index.md) - [ElevenAPI](./elevenapi-index.md) - [ElevenCreative](./elevencreative-index.md) - [ElevenLabs Documentation Docs](../index.md) - [General Troubleshooting FAQ](./troubleshooting-index.md) - [General Website FAQ](./website-index.md) - [Help Center](./help-center-2-index.md) # Agent Instructions Cite this page’s canonical URL and keep its documentation version. 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