Is Unity Sentis free?

Yes — Unity Sentis is free to use. See the pricing section above for details on any paid tiers or add-ons.

What are the main benefits of Unity Sentis?

Run models offline with zero latency or server dependency. Support multiple platforms including mobile and console builds. Import standard ONNX format models from TensorFlow, PyTorch, or other frameworks.

Unity Sentis

Run neural networks directly in Unity games without external servers

5.0(69 reviews)freeFounded 2026

free tieropen source

Unity Sentis executes ONNX models locally in game engines for real-time AI inference. Built for game developers needing on-device neural networks for NPCs, procedural generation, or player behavior analysis.

Sentis enables developers to import ONNX-format neural networks and run inference natively within Unity, supporting CPU and GPU execution across platforms. It handles common model architectures for game AI tasks—NPC decision-making, animation blending, procedural content generation—without requiring cloud APIs or external ML frameworks.

Pros

Run models offline with zero latency or server dependency
Support multiple platforms including mobile and console builds
Import standard ONNX format models from TensorFlow, PyTorch, or other frameworks
Integrate directly into existing Unity workflows without external tools

Cons

Performance varies significantly by target platform and model complexity
Limited built-in tooling for training; requires external ML frameworks
Documentation focuses on inference rather than game-specific optimization patterns