---
title: "Build with Unity AI"
content_type: collection
url: "https://learn.unity.com/collection/build-with-unity-ai?language=en"
language: en
author: "Unity Technologies"
topics:
  - "AI & Navigation"
  - "Project Setup & Settings"
  - "Editor Essentials"
last_updated: "2026-08-31T16:08:52.000Z"
---

# Build with Unity AI

Develop games faster with the Unity AI suite — Agentic Assistant, AI Gateway, and MCP Server. Write scripts, debug errors, and build features using AI directly inside the Unity 6 Editor. Works with your existing Claude or GPT subscription.

## Step 1: Get Unity AI running

_Install the package, try it hands-on, then watch the series to see what's possible._

- [Install the Unity AI Assistant package](https://docs.unity3d.com/Packages/com.unity.ai.assistant@2.9/manual/install/install-chat.html) — Step-by-step install via the Unity Editor or Package Manager. About five minutes.
- [Use Assistant to set up your scene](https://learn.unity.com/tutorial/use-assistant-to-set-up-your-scene?language=en) ([md](https://learn.unity.com/tutorial/use-assistant-to-set-up-your-scene.md?language=en)) — Use the Unity AI Assistant to block out a scene using natural language. You'll use /ask, /run, and /code modes to create GameObjects, generate lighting, and write scripts — all without leaving the editor.
- [Unity AI in action: 13 practical demos](https://www.youtube.com/playlist?list=PLX2vGYjWbI0R8KK-I3ykVKrFggJB8isEd) — Covers the Agentic Assistant, AI Gateway, and MCP Server through real development scenarios.
- [Best practices for using the Unity AI Assistant](https://docs.unity3d.com/Packages/com.unity.ai.assistant@2.9/manual/best-practice/best-practice-assistant.html) — How to structure prompts for better results — clear queries, Unity-specific terminology, iterative workflows, and how to use /ask, /run, and /code modes effectively.

## Step 2: Choose how you work

_Unity AI supports two workflows. Pick the one that fits how you already work._

- [AI Assistant model tiers: Lite vs Ultra](https://docs.unity.com/en-us/ai/credits/credits-about) — The AI Assistant has two model tiers — Lite is faster and credit-efficient for everyday tasks, Ultra handles complex multi-step work. Understand the difference before spending credits.
- [Already have Claude or GPT? Connect with AI Gateway](https://docs.unity3d.com/Packages/com.unity.ai.assistant@2.9/manual/integration/ai-gateway-get-started.html) — Use your existing third-party AI subscription inside the Unity editor. No Unity credits consumed.
- [Control Unity from your IDE with the MCP Server](https://docs.unity3d.com/Packages/com.unity.ai.assistant@2.9/manual/integration/unity-mcp-get-started.html) — Operate the Unity editor from VS Code, Cursor, or any MCP-compatible application.
- [Switching from Unity MCP server to Unity CLI](https://www.youtube.com/watch?v=FsSu_CHzI2o) — Move your Unity MCP setup to the Unity CLI and unlock play mode, tests, screenshots, live runtime control, and eval, all from your terminal.

## Step 3: Go deeper

- [What is Unity AI?](https://unity.com/resources/what-is-unity-ai) — Official overview of Unity AI's four tools — Unity Assistant, Generators, AI Gateway, and MCP Server — including scope, pricing, and data handling.
- [Ship AI features to players with Unity Sentis](https://docs.unity3d.com/Packages/com.unity.sentis@latest) — Runs trained neural network models natively in your shipped game.