> This is a page from the ElevenLabs documentation. For a complete page index, fetch https://elevenlabs.io/docs/llms.txt. For the full documentation in a single file, fetch https://elevenlabs.io/docs/llms-full.txt. # Does the ElevenReader app offer AI audio narration for all content? Yes. Every book distributed through the ElevenReader Publishing program is enabled for AI narration by default, without additional costs for the author/publisher. App users can select a narrating voice from the ElevenLabs voice library. > ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.