# Dots.tts: 2B-parameter continuous, end-to-end autoregressive TTS system

> Source: <https://rednote-hilab.github.io/dots.tts-demo/>
> Published: 2026-06-06 04:53:53+00:00

# dots.tts

A 2B-parameter fully continuous, end-to-end autoregressive text-to-speech system.

**Abstract**
dots.tts is a **2B-parameter fully continuous**, end-to-end
autoregressive (AR) text-to-speech system. The backbone pairs a **semantic encoder**,
an **LLM**, and an **autoregressive flow-matching acoustic head** over
a 48 kHz **AudioVAE**, with no discrete tokens anywhere in the pipeline.

dots.tts achieves the **best average performance** on Seed-TTS-Eval,
with WERs of **0.94% / 1.30% / 6.60%** and SIM scores of **81.0 / 77.1 / 79.5**
on the zh / en / zh-hard test sets, respectively. It further attains the highest average speaker similarity
(**83.9**) on the 24-language MiniMax multilingual benchmark. Across other benchmarks,
dots.tts also consistently demonstrates **open-source state-of-the-art**
performance, exhibiting strong generation stability, voice cloning ability, and emotional expressiveness.

**Contents**