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GPT-SoVITS

GPT-SoVITS is a WebUI for voice conversion and text-to-speech, with tools for preparing training data and an API for inference. It supports zero-shot speech generation from a five-second vocal sample; fine-tuning with one minute of training data can improve voice similarity and realism. Cross-lingual inference covers English, Japanese, Korean, Cantonese, and Chinese. The WebUI includes accompaniment separation, automatic training-set segmentation, multilingual speech recognition, and text labeling. Recognition options include Fun-ASR-Nano, SenseVoice, classic FunASR, and Faster Whisper. Its API provides GET and POST inference endpoints that return WAV audio streams on success. The project provides installation instructions for Windows, Linux, and macOS, plus Docker Compose services for CUDA 12.6 and 12.8 in full and Lite variants. The Lite image excludes ASR and UVR5 models; UVR5 models require manual download, while ASR models download as needed. The software is free, permits commercial use, and is released under the MIT License. Its guides are available in Chinese and English.

Who it is for

It may suit people creating voice models or speech from short voice samples, including beginners using the dataset tools. It is available to users who can install it on Windows, Linux, or macOS, or deploy it with Docker.

What is good

  • Free plan and commercial use are allowed.
  • Five-second samples support zero-shot text-to-speech.
  • One minute of data can be used for fine-tuning.
  • Supports five languages for cross-lingual inference.
  • Includes GET and POST inference API endpoints.

What to know first

  • Lite Docker omits ASR and UVR5 models.
  • UVR5 models require manual downloading in Lite.
  • macOS temporarily uses CPUs due to reported GPU-model quality limits.
  • No SECURITY.md policy or published advisories are reported.

Verdict

GPT-SoVITS combines short-sample speech generation with fine-tuning, dataset tools, and an inference API. Check the Lite image omissions and macOS limitation against your setup before choosing a deployment.

Compared on text-to-speech software

Free plan
Yes
API access
Yes
Commercial use
Yes

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