Same voice engine, different job
Sixty-seven of the 137 voices in AI Audiobooks are ElevenLabs voices, run on two of its models: Turbo 2.5 (our Premium model) and v3 (our Expressive model, with laughs, whispers and the widest emotional range). The other seventy are Gemini Flash TTS voices at a lower cost per character. So this comparison is about workflow, not about whose voices sound better.
AI Audiobooks and ElevenLabs, compared for book projects
ElevenLabs ships new features often, so read its column as a general description and check its current pages for details.
| AI Audiobooks | ElevenLabs | |
|---|---|---|
| What it is | An audiobook studio built around whole books | A broad voice AI platform: speech, cloning, dubbing and an API |
| Voices | 67 ElevenLabs voices plus 70 Gemini Flash TTS voices | Its full library, plus voices you design or clone |
| Starting point | EPUB, DOCX, text PDF, TXT, Markdown or pasted text | Varies by tool; check current import options |
| Character casting | Speakers detected from dialogue tags and cast automatically | Voices assigned in its editor; check current features |
| Chapters | From the EPUB contents or your headings, front matter set aside | Varies by tool |
| Direction | A bracket note at the start of a line, plus inline tags on Expressive | Controls and tags that depend on the model |
| Export | MP3 per chapter, ZIP, or M4B with markers, tags and cover | Check current export formats |
| Voice cloning | Not yet; on the roadmap | A core feature |
| Pricing | Credits per 1,000 characters, set by model | Check their current plans |
Cases where ElevenLabs alone fits better
You need your own voice. If the book should be read by a clone of your voice, or by a voice designed from a prompt, ElevenLabs offers that and AI Audiobooks does not yet. Cloning is on our roadmap, not in the product.
You are building software, not a book. For an app, a game or a voice agent, its API and developer tools are the point. AI Audiobooks is a studio for finished audiobooks, not a speech API.
You use its other tools every week. Dubbing, voice changing and sound effects live in the same account. If those are part of your routine, one subscription may simply be easier.
Your language is not in our library. ElevenLabs lists a wider set of languages than our 13, so check both for the language you need.
What changes when the project is a whole novel
The cast is worked out for you. Upload a manuscript and the AI audiobook creator reads the dialogue tags (“said Ren”, “Mara whispered”), gives the narrator everything outside quotes and assigns up to ten named characters their own voices, plus an “Other voices” role. You review and swap instead of tagging thousands of lines. The multi voice audiobook page shows how attribution works.
Chapters come from the file. An EPUB’s table of contents, a Word file’s Heading 1 and Heading 2 styles, or lines such as “Chapter 3” in a text file set the chapters. Cover, copyright and contents pages are set aside, so narration opens on the story.
Direction lives in the text. A note in square brackets at the start of a line, such as [whisper] or [like a weary detective], shapes the delivery. Inline sound tags such as [laugh] and [sigh] work on Expressive (ElevenLabs v3) and on the Standard and Lite models, but not on Premium (Turbo 2.5). The full list is on the AI voice emotion tags page.
The output is a finished file. Export one M4B with named chapter markers, title, author and cover, an MP3 per chapter, or a ZIP with a chapters index. M4B vs MP3 explains which suits your listeners.
What a finished hour costs on each voice model
About 55,000 characters make one finished hour. Credits are charged per 1,000 characters, whichever character speaks them.
| Model | Engine | Credits per 1,000 characters | Per finished hour |
|---|---|---|---|
| Lite | Gemini Flash-Lite TTS | 6 | Lowest; drafts and long nonfiction |
| Standard | Gemini Flash TTS | 9 | About $9 to $12 |
| Premium | ElevenLabs Turbo 2.5 | 13 | About $13 to $18 |
| Expressive | ElevenLabs v3 | 34 | About $33 to $46 |
ElevenLabs sells its own plans directly, so check their current pricing to compare. Estimate your own book in the audiobook cost calculator.
Moving a book over from ElevenLabs
- 1
Start from the manuscript
Upload the EPUB or DOCX the text came from, not the audio. Chapters and speakers are read from the file.
- 2
Match your voices
Pick the same or similar ElevenLabs voices for the narrator and leads from the premium list, or try Standard voices for a cheaper pass.
- 3
Carry over your notes
Turn delivery notes into bracket directions at the start of the lines that need them.
- 4
Generate one chapter and compare
Listen against your existing version, then generate the rest and export M4B or MP3.
