dtaddis/SmolLM3-3B-Unity

SmolLM3-3B for Unity Sentis

This repository contains optimized versions of the SmolLM3-3B model, specifically formatted for use in Unity Sentis.

Available Versions

File Name	Format	Precision	Size	Best For
model.sentis	Sentis	FP32	~13GB	High-fidelity source / Desktop
model_FP16.sentis	Sentis	FP16	~6.5GB	Balanced Performance / Modern GPUs
model_Uint8.sentis	Sentis	Uint8	~3.3GB	Maximum Performance / Mobile / Low-end PC

How to use in Unity

1. Install Sentis: Ensure you have the com.unity.sentis package installed via the Unity Package Manager (2.1.0+ recommended).
2. Download Model: Download the .sentis file of your choice.
3. Import: Drag the .sentis file into your Unity Project.
4. Setup Tokenizer: You will need a compatible tokenizer (like the tokenizer.json from the base SmolLM3 repo) to convert text to tokens.

Basic C# Loading Snippet

using Unity.Sentis;
using UnityEngine;

public class MyLLM : MonoBehaviour {
    public ModelAsset modelAsset;
    private IWorker engine;

    void Start() {
        Model runtimeModel = ModelLoader.Load(modelAsset);
        engine = WorkerFactory.CreateWorker(BackendType.GPUCompute, runtimeModel);
    }
}