Kokoro-82M vs KittenTTS Nano
Two open-source models that run fully in your browser — compared on the numbers that matter, with both available to try free so you can hear the difference on your own text.
| Kokoro-82M | KittenTTS Nano | |
|---|---|---|
| Parameters | 82M | 15M |
| Download | 88 MB CPU / 310 MB WebGPU | 57 MB |
| Quality rank (of our lineup) | #2 | #6 |
| Speed | ≈ real-time on a modern CPU (WASM); 2–6× faster than real-time with WebGPU. | Faster than real-time on virtually any device, including old phones. |
| Voices | 28 | 8 |
| Languages | 2 | 1 |
| Voice cloning | No | No |
| Streaming | Yes | No |
| Hardware | CPU ok, WebGPU faster | Any CPU (WASM) |
| License | Apache-2.0 | Apache-2.0 |
| Output | 24.0 kHz | 24.0 kHz |
Which should you choose?
- Kokoro-82M if you want the most natural output and your device meets its requirements (≈ real-time on a modern CPU (WASM); 2–6× faster than real-time with WebGPU.).
- KittenTTS Nano if download size or low-end hardware matters — it needs 57 MB and runs on any CPU.
Frequently asked questions
Which sounds better, Kokoro-82M or KittenTTS Nano?
Kokoro-82M ranks higher for naturalness in our lineup. But "better" depends on the job — KittenTTS Nano wins when download size or low-end hardware matters — it needs 57 MB and runs on any CPU. Generate the same sentence with each and let your ears decide.
Are these comparisons measured or copied?
Speed and size figures come from the models' published specs and our own in-browser runs; the benchmark page lets you reproduce every number on your own hardware.