Confucius4-TTS
The facts below are what the maker publishes about Confucius4-TTS, checked and dated. Our editors have not written about it yet.
The facts
Each one read from Confucius4-TTS's own pages, with the date it was checked.
What it does
- API
- A FastAPI server provides non-streaming and streaming TTS endpoints that accept text, a language code and a reference audio upload.checked 13 Oct 2026
- API access
- Yeschecked 20 Sep 2026
- API output
- The non-streaming API returns a WAV file and the streaming API returns raw int16 little-endian PCM chunks.checked 12 Oct 2026
- Commercial use
- Yeschecked 20 Sep 2026
- Cross-language transfer
- The project says users can synthesize speech across its supported languages while retaining the same voice.checked 13 Oct 2026
- Cross-lingual transfer
- It can synthesize speech across its supported languages while retaining speaker identity.checked 12 Oct 2026
- Deployment
- The repository provides a Gradio web UI and a FastAPI server with streaming and non-streaming endpoints.checked 12 Oct 2026
- Emotion
- The README describes emotion transfer as a feature.checked 12 Oct 2026
- Emotion transfer
- The listed features include emotion transfer that aims to carry the feeling of a reference voice into generated speech.checked 13 Oct 2026
- Export formats
- WAV,PCMchecked 20 Sep 2026
- Fine-tuning
- The README documents training workflows for its Text2Semantic and Semantic2Acoustic modules using prepared TSV training data and pretrained models.checked 13 Oct 2026
- Integrations
- The project acknowledges use of Qwen3-TTS, CosyVoice, Amphion/MaskGCT, w2v-BERT 2.0, Seed-VC, and BigVGAN components or methods.checked 12 Oct 2026
- Languages
- The project lists support for 14 languages: Chinese, English, Japanese, Korean, German, French, Spanish, Indonesian, Italian, Thai, Portuguese, Russian, Malay and Vietnamese.checked 13 Oct 2026
- License
- The repository includes an Apache License, Version 2.0.checked 13 Oct 2026
- Limit
- The README says vLLM support currently targets version 0.16.0 with the V1 engine and warns that hardware and CUDA requirements may prevent it from running.checked 12 Oct 2026
- Performance
- The README reports multilingual and cross-lingual benchmark results, including WER, CER, and speaker similarity metrics.checked 12 Oct 2026
- Product
- Confucius4-TTS is an LLM-based multilingual and cross-lingual zero-shot text-to-speech engine.checked 12 Oct 2026
- Purpose
- Confucius4-TTS is an LLM-based text-to-speech system for multilingual and cross-lingual speech synthesis that preserves speaker identity across languages.checked 13 Oct 2026
- Requirements
- The listed installation requirements are Python 3.10 and CUDA 12.6.checked 13 Oct 2026
- Streaming
- The project documents streaming generation that returns raw int16 little-endian PCM chunks and provides the sample rate in a response header.checked 13 Oct 2026
- vLLM support
- For faster Text2Semantic generation, the README documents a vLLM backend and says it currently supports vLLM 0.16.0 with the V1 engine.checked 13 Oct 2026
- Voice cloning
- It supports zero-shot voice cloning without requiring a reference transcript or additional training.checked 13 Oct 2026
The company
- Maker
- The GitHub organization identifies itself as NetEase Youdao and lists Beijing as its location.checked 13 Oct 2026
Where it runs
- Platforms
- web,api,linux,self_hostedchecked 20 Sep 2026
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