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fishaudio

s1-mini

TTSCC BY-NC-SA 4.06/9/2026
Requires acceptance of CC BY-NC-SA 4.0 license

This model requires you to accept the CC BY-NC-SA 4.0 license terms before download.

22downloads
2.6 GiB

Description

OpenAudio S1-Mini — Fish Audio compact multilingual (13-language) text-to-speech model offering expressive, emotion-controllable voice synthesis and zero-shot voice cloning. Non-commercial license (CC-BY-NC-SA-4.0).

Tags

Text-to-SpeechVoice CloningMultilingualEmotion ControlNon-Commercial

At a glance

Kindtext-to-speech model
Precisionbfloat16
Container size2.6 GiB
Weights inside3.3 GiB
Components5
LicenceCC BY-NC-SA 4.0
Originfishaudio/openaudio-s1-mini @ f4b445029346

What is inside the container

A .nbx container packs every part of s1-mini — 5 components with weights, graphs and runtime settings — so one file is all the runtime needs.

ComponentBlocksLayersWeights
codec.encoder0—551 MiB
codec.quantizer0—1.0 GiB
codec.decoder0—206 MiB
model0281.5 GiB
model.fast0—112 MiB

Default settings

The values the container ships with. They apply when you do not pass your own.

Temperature
0.7
Top-p
0.8

Memory needed

The weights of s1-mini take 3.3 GiB in bfloat16. That is the floor for the memory the runtime has to place, spread over the devices it finds; activations come on top and grow with the size and length you ask for. A measured peak per device class is not published for this model yet.

Verify what you downloaded

Every download carries its SHA-256, and the file endpoint sends it in the X-NBX-SHA256 header. The container is 2.6 GiB (2,811,042,520 bytes).

$ sha256sum s1-mini.nbx

ea8f46deb5cdb49df365e59906824c51f661b16ea23c562cb0ed882ec847ed8e

Questions

What is s1-mini?

A text-to-speech model by fishaudio, distributed as a bfloat16 .nbx container and licensed CC BY-NC-SA 4.0.

How big is the download?

2.6 GiB, of which 3.3 GiB are weights.

How do I run it?

Install the runtime from the download page, then use the commands under “CLI Usage” below: neurobrix import fishaudio/s1-mini, then neurobrix serve --model s1-mini.

CLI Usage

$ neurobrix import fishaudio/s1-mini

$ neurobrix serve --model s1-mini

$ neurobrix run --prompt "your prompt here"

$ neurobrix stop

Model weights are distributed under their original vendor license. NeuroBrix does not modify the license terms. Users are responsible for complying with the applicable license.