kitio.aiKokoro vs Piper
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Kokoro starts at Free and Piper starts at Free. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- 82M parameter model
- Preset multilingual voices
- CPU-friendly inference
- ONNX and browser ports
- Apache 2.0 license
- Runs offline on CPU
- Dozens of languages
- Multiple voice quality sizes
- Python and CLI interfaces
- Custom voice training
| Feature | Kokoro | Piper |
|---|---|---|
| Best for | Tiny open-weight text-to-speech model that runs on almost anything | Fast local text-to-speech engine popular with Home Assistant users |
| Category | Audio & voice | Audio & voice |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | hexgrad | Open Home Foundation |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Kokoro starts at Free and Piper starts at Free. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Kokoro
- Very fast even without a GPU
- Permissive commercial license
- Easy to embed in apps
- No voice cloning
- Fewer voices than commercial services
Piper
- Runs on a Raspberry Pi
- Private, fully offline speech
- Large set of free voices
- Less natural than cloud voices
- No voice cloning from short samples
Which one should you choose?
Choose Kokoro if you want:
- Very fast even without a GPU
- Permissive commercial license
- Easy to embed in apps
Watch out: no voice cloning.
Choose Piper if you want:
- Runs on a Raspberry Pi
- Private, fully offline speech
- Large set of free voices
Watch out: less natural than cloud voices.
Kokoro vs Piper FAQ
What is the difference between Kokoro and Piper?
Kokoro: Tiny open-weight text-to-speech model that runs on almost anything. Piper: Fast local text-to-speech engine popular with Home Assistant users. Both are audio & voice tools.
Is Kokoro or Piper cheaper?
Kokoro starts at Free and Piper starts at Free. Check both pricing pages for current plans.
Do Kokoro and Piper have free plans?
Kokoro: Yes, fully free. Piper: Yes, fully free.
Who makes Kokoro?
Kokoro is made by hexgrad.
Who makes Piper?
Piper is made by Open Home Foundation.
Which should I choose, Kokoro or Piper?
Choose Kokoro if you value very fast even without a gpu and permissive commercial license. Choose Piper if you value runs on a raspberry pi and private, fully offline speech.