Text to speech

F5-TTS

A voice cloning model that needs only a few seconds of a sample, in English and Chinese. The community has released many fine-tuned versions for other languages, including Russian.

Developer
Shanghai Jiao Tong University and partners, China
First release
Oct 2024
Latest release
Mar 2025
Sizes
about 340M
License
Non-commercial onlyCode MIT, official weights CC BY-NC 4.0, non-commercial
Russian
Not supported
Ready-made builds
GGUF
Running
On your own serverNeeds a GPU
Industries
Media and production, Science and research
Deploy on your server Hugging Face GitHub

What it does

  • Voice cloning
  • Voicing audiobooks and videos
  • Research and prototypes

Where it is used

ResearchMedia (non-commercial projects)Education

Hardware requirements

LaptopLaptop or regular PC, up to 8 GB of VRAM — smaller versions
fits
1 GPUOne GPU with 16–80 GB — mid-size versions
no versions
ClusterServer with several GPUs — flagship versions
no versions

Versions

  1. F5-TTS v1
  2. F5-TTS

How to run it

On your own serverWeights are downloaded from Hugging Face and served with vLLM (load and API) or llama.cpp (modest hardware). The model then runs in a closed network with no per-request fees.Hugging Face
How much hardware you needCalculate the VRAM for the model size, context length and number of concurrent requests.Open the hardware calculator

I can set this up end to end: pick the model size, deploy it on your server and connect it to your systems. Quantization compresses a model so it takes less video memory and runs on more modest hardware. Answers change slightly, so quality is checked on your own examples.

Frequently asked questions

Can F5-TTS be used in a commercial project?

No. License: Code MIT, official weights CC BY-NC 4.0, non-commercial. A commercial product needs a different model or a separate agreement with the rights holder.

What hardware does F5-TTS need?

At minimum: Laptop or regular PC, up to 8 GB of VRAM — smaller versions. Without a GPU the model is not practical. You can calculate the exact VRAM for your model size and context in the hardware calculator.

Does F5-TTS support Russian?

No. The model card lists its languages and Russian is not among them.

Where can I download F5-TTS and what does it cost?

The F5-TTS weights are open and free to download. You only pay for the hardware it runs on and for the setup. Source links are at the bottom of this page.

How I deploy it for clients

  1. SelectionI pick the model size for your task and hardware and test it on your examples.
  2. DeploymentI deploy it on your server or in a closed network and provide an API.
  3. Fine-tuningI fine-tune it on your data (LoRA) or connect a knowledge base — whichever is cheaper for the task.
  4. IntegrationI connect it to your CRM, ERP, bot, website or team chat and set up monitoring.

Comparisons

Similar models

Text to speechCosyVoice / Fun-CosyVoiceAlibaba (Tongyi, FunAudioLLM) · ChinaCommercial use allowed

Speech synthesis with voice cloning from a short sample and streaming output for live dialogue. Version 3 supports 9 languages, including Russian.

DetailsText to speechChatterboxResemble AI · USACommercial use allowed

Speech synthesis with voice cloning and adjustable expressiveness. The multilingual version supports 23 languages, including Russian; Turbo and Flash are sped up for live dialogue.

DetailsText to speechVoxCPMOpenBMB (ModelBest, Tsinghua University) · ChinaCommercial use allowed

Speech synthesis with voice cloning and natural intonation. VoxCPM2 supports 30 languages, including Russian.

Details

Source: huggingface.co/SWivid/F5-TTS. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.