Chatterbox

Resemble AI
class A live

Open-weights (MIT) zero-shot voice-cloning TTS from Resemble AI; 23 languages; embeds an imperceptible Perth neural watermark on every output.

Layer 1 — factual axes

API & price self-host only (open weights) official source ↗ 2026-07-04
Voices any (design) official source ↗ 2026-07-04
Voice cloning yes · instant official source ↗ 2026-07-04
Languages 23 official source ↗ 2026-07-04
Weights open · MIT official source ↗ 2026-07-04
Free tier watermarked official source ↗ 2026-07-04

Layer 2 — output quality

1479 / 1600
TTS Arena V2 ↗ measured 2026-07-04
Eligible for Open-weightsVoice cloningBest free

Open-weights (MIT) zero-shot voice-cloning TTS from Resemble AI; 23 languages; embeds an imperceptible Perth neural watermark on every output.

Data as of 2026-07-04 · verified 2026-07-04. One ruler for all tools. How we measure ↗