README.md

metadata

title: FireRedTTS3
emoji: 🔥
colorFrom: red
colorTo: pink
sdk: gradio
sdk_version: 6.24.0
app_file: app.py
python_version: '3.12'
startup_duration_timeout: 1h
pinned: false
license: apache-2.0
short_description: Voice cloning, voice design and speech editing
models:
  - FireRedTeam/FireRedTTS3

🔥 FireRedTTS3

Interactive demo of FireRedTeam/FireRedTTS3, a unified speech generation and editing model (Qwen3-1.7B backbone + flow-matching head over the continuous RedAE audio autoencoder, 24 kHz).

Three tabs:

Tab	Checkpoint	What it does
🎙️ Voice Cloning	fireredtts3_base	Zero-shot cloning from a short reference clip — 24 languages and 21 Chinese dialects
🎨 Voice Design	fireredtts3_instruct	Creates a voice from a natural-language description, no reference audio
✂️ Speech Editing	fireredtts3_instruct	Semantic edits (insert / delete / substitute words) and acoustic edits (speed, pitch, volume)

Text normalization runs locally via wetext (Chinese / English); automatic language routing uses fastText lid.176. The optional LLM-based normalizer from the upstream repo is disabled here (it requires external API credentials).

Credits

• Model and inference code: FireRedTeam/FireRedTTS3, Apache-2.0.
• examples/en_prompt.wav: from OpenBMB/VoxCPM (examples/example.wav), Apache-2.0.
• examples/zh_prompt.wav: from FireRedTeam/FireRedTTS2 (examples/chat_prompt/zh/S2.flac), Apache-2.0.

Voice cloning is provided for academic research purposes only — do not use it for impersonation or any illegal activity.