Fish Audio S2 Pro
Fish Audio · Fish Audio
Fish Audio's flagship speech model, trained on 10M+ hours of audio with fine-grained inline control over prosody and emotion across 80+ languages. Needs a 24 GB GPU for CUDA inference, though a CPU-only install path exists for testing. Free for research and non-commercial use under the Fish Audio Research License; commercial use requires a separate paid license.
Params
5B (4B slow AR + 400M fast AR)
License
Fish Audio Research License (non-commercial)
Min VRAM
24 GB GPU (CUDA) — CPU-only install also available
Speed
Real-time factor 0.195 on a single H200 · time to first audio ~100ms
Languages
80+ languages (Japanese, English, Chinese as tier 1)
Tier
Heavy
Install & run locally
git clone https://github.com/fishaudio/fish-speech.git
cd fish-speech
pip install -e .[cu129] # or .[cpu] for CPU-only
docker compose --profile webui up # WebUI at localhost:7860Full install and usage docs on the Hugging Face model card.
Will it run on my hardware?
Fish Audio S2 Pro needs about 24 GB GPU (CUDA) — CPU-only install also available of fast memory. Here is what in our hardware database clears that bar.
Runs at full speed · 6
Runs, but slower on shared memory · 3
6 other tracked configurations do not have enough memory.
Hardware links are affiliate links. We earn a small commission if you buy through them — at no extra cost to you. Disclosure
Specifications
| Parameters | 5B (4B slow AR + 400M fast AR) |
|---|---|
| License | Fish Audio Research License (non-commercial) |
| Min VRAM | 24 GB GPU (CUDA) — CPU-only install also available |
| Speed | Real-time factor 0.195 on a single H200 · time to first audio ~100ms |
| Languages | 80+ languages (Japanese, English, Chinese as tier 1) |
| Recommended tier | Heavy |
| Best for | voice cloningemotion controlmultilingual speech |
Source
Not distributed through Ollama — install and run it directly from the model card.
View on Hugging FacePopularity trend (illustrative)
Illustrative adoption trend, not actual download counts. We do not publish a download number for any model because we have no honest source for it.
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