KittenTTS
A tool to convert text to speech with minimal computing resources.
At a glance
Price not confirmed · Source review 2026-10-31- Price & billing
Open-source under the Apache-2.0 license; commercial support and enterprise licensing are available on contact, with no amounts shown in the reviewed text.
- Free allowance
Not separately confirmed. Check the current plan before relying on a free allowance.
- Best suited to
Developers who need open-source text-to-speech that runs on CPU without a GPU.
Fit is editorial guidance, not a measured result.- Platforms
Access: not separately verified. Operating systems not separately verified.
Published-source facts and editorial guidance. No product test is implied. Confirm current conditions before purchase.
No product screenshot is claimed for this listing. Use the official website ↗ to inspect the current interface.
What to know before choosing
Good fit
Developers who need open-source text-to-speech that runs on CPU without a GPU.
Limits and trade-offs
This entry is based on the project's GitHub repository page, not a marketing homepage; usage details beyond the README summary are not verified here. The state-of-the-art claim is the project's own description on the repository page, not an independent benchmark result.
Plans and free allowances
Open-source under the Apache-2.0 license; commercial support and enterprise licensing are available on contact, with no amounts shown in the reviewed text.
Evidence
KittenTTS GitHub repository page ↗ (reviewed 2026-10-31)
Official published page review; no authenticated product test
Dates: Last reviewed 2026-10-31. Last reviewed is the latest source or editorial review date; it is not a content-change date.
A closer look at KittenTTS
KittenTTS is an open-source state-of-the-art text-to-speech model that runs on a CPU: it runs realtime on CPUs and consumer GPUs, and its lightweight V0.8 models (15M to 80M parameters) run on CPU without a GPU. Both model families load through the same KittenTTS constructor, with voice cloning, expression controls, and streaming support.
Editorial guidance based on published documentation. The workflow below is a suggested starting point, not a measured product result.
When to choose KittenTTS
- Developers who need open-source text-to-speech that runs on CPU without a GPU.
- Teams that want voice cloning and expression controls in a lightweight model family.
- Builders who want to run TTS on a Mac, on CPU, or with vLLM through one constructor.
When to choose something else
- Users who want a hosted TTS app with no code; the page presents an open-source model and library.
- Teams that need guaranteed commercial terms; those are available on contact, not published on the page.
A practical starting workflow
- Install the KittenTTS library from the repository.
- Load a model family through the KittenTTS constructor, choosing a lightweight CPU model or a larger one.
- Generate speech from text, using voice cloning or expression controls as needed.
- Run on CPU, on a Mac, or with vLLM, and stream long text where supported.
Check before committing
- This entry is based on the project's GitHub repository page, not a marketing homepage; usage details beyond the README summary are not verified here.
- The state-of-the-art claim is the project's own description on the repository page, not an independent benchmark result.
- Commercial support and enterprise licensing are available on contact, with no amounts shown in the reviewed text.
- Pricing and feature availability may change; confirm current terms on the official website before committing.
Common questions
What is KittenTTS?
An open-source text-to-speech model that runs in realtime on CPUs and consumer GPUs, with lightweight V0.8 models of 15M to 80M parameters that run on CPU without a GPU.
What features does it list?
Voice cloning, expression controls, long text and streaming, running on CPU, on a Mac, or with vLLM, all through the same KittenTTS constructor.
How much does it cost?
Open-source under the Apache-2.0 license; commercial support and enterprise licensing are available on contact, with no amounts shown.
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Sources and checks
Last source review is not a date of product testing. No rating or test result is implied by inclusion. Check the current plan and terms before buying.