---
license: apache-2.0
library_name: transformers
pipeline_tag: text-to-speech
language:
- en
- zh
base_model:
- Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign
base_model_relation: finetune
tags:
- zen3
- zen3-tts
- zenlm
- qwen3-tts
- speech-synthesis
- voice-design
- controllable
- 12hz
---

# Zen3 TTS Voice Design

Zen3 TTS variant for voice design: synthesize new speakers from natural-language descriptors (timbre, age, accent, affect) without reference audio.

Derived by fine-tuning [`Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign`](https://huggingface.co/Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign) (Alibaba Cloud, Apache-2.0).

- Architecture: `Qwen3TTSForConditionalGeneration` (`qwen3_tts`)
- Parameters: ~1.7B
- Base model: [`Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign`](https://huggingface.co/Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign)

## Weights

This repository contains the model weights: `model.safetensors` (talker) plus a `speech_tokenizer/` module (12 Hz codec), config and tokenizer files.

The model uses the `qwen3_tts` architecture and loads with `transformers` (>= 4.57). It is API-compatible with the upstream base — follow the inference recipe on the base model card [`Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign`](https://huggingface.co/Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign).

## Provenance

Fine-tuned from [`Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign`](https://huggingface.co/Qwen/Qwen3-TTS-12Hz-1.7B-VoiceDesign) (Apache-2.0). See `NOTICE` for full attribution.