tts.spqw.net

Open-source text-to-speech — ranked for this CPU box, with listen samples.

Leaderboard · Oct 2026

On CPU (no GPU). Speed is × realtime when measured here.

#	Model	On this box
1	Kokoro-82M ONNX INT8 · Apache 2.0 · presets	Default · fastest usable quality
2	Piper ONNX · MIT · many voices	Lowest latency fallback
3	Chatterbox Nano 110M · MIT · clone + tags	~0.4× realtime measured
—	Chatterbox Turbo / Multilingual MIT · cloning	Needs GPU for speed

Kokoro

82M · ONNX INT8 · CPU · presets

af_heart

American · female

Hello — this is Kokoro running on this cloud computer.

am_adam

American · male

State of the art text to speech can still run fast on CPU.

af_sky

American · female

Weekly reviews keep the default stack current.

bm_george

British · male

These demos are served from tts.spqw.net.

Chatterbox Nano

110M · CPU · zero-shot clone from a short reference

nano · af_heart ref

clone

Chatterbox Nano is a small English text to speech model running on CPU for tts.spqw.net. This clip clones a short reference voice.

nano · bm_george ref

clone · [chuckle]

This second Nano sample uses a different reference voice [chuckle], and it still speaks a short informative English line.