Synagy vs Unity AI: which should you use?
Synagy vs Unity AI compared in 2026: price, who each is for, how they connect to MCP, what they build and where Unity AI is the better choice.
Published 4 min readby the Synagy team
Short answer: Unity AI is Unity's own assistant for people who already work in the editor, and it is the right pick if you know Unity and want the vendor's tools. Synagy is a free package for people who do not code: it plans a game with a price, builds it, play-tests it and fixes it. You can install both in the same project. Last checked: 2026-10-30.
We make Synagy, so we are not neutral. Unity facts link to Unity's pages or to named press, and we say where Unity AI is better.
Synagy vs Unity AI at a glance
| Synagy | Unity AI | |
|---|---|---|
| Made by | Synagy Games, two people in Germany | Unity Technologies |
| Aimed at | People with a game idea who do not program | Developers who already work in Unity |
| Works in | Unity 6 (6000.0 or newer), Windows, macOS, Linux | Unity 6 and newer |
| How you use it | A chat that plans, builds and tests; or your own agent over MCP | An assistant in the editor; or your agent over Unity's MCP server |
| Price | Free package; 25 Free Credits a day in the free beta | 14-day trial with 1,000 credits, then about $10 a month (guide) |
| Sign-in | Free Synagy account | Unity Cloud link and an AI plan (Unity blog) |
| Failed work | A part that fails costs nothing | Not stated in the sources we checked |
| Status | Beta, "without warranty" | Open beta since May 2026 |
you know the editor and want answers, script help and scene edits from the vendor
you do not code and want a plan with a price, a build you can watch, and a bot test
you want Unity's assistant for questions and Synagy to build whole parts
What is the difference in how they work?
Unity AI answers you inside the editor. You ask, it writes or changes something, and you review it. That suits people who can read the result.
Synagy runs a crew of agents. It turns one line into a plan with a price for every part, writes C# scripts and scene objects into Assets/Synagy/, compiles them, runs Play mode, checks a screenshot and fixes what fails before you see it. You can interrupt and redirect it while it works.
Does the MCP side differ?
Both offer an MCP server so that your own agent, such as Claude Code, can drive Unity. Unity's official server uses no credits itself, but it needs the Unity AI package, a Unity Cloud link and an accepted "Pending Connection" prompt. Synagy's server is free and needs no Unity Cloud login, only a free Synagy account to unlock the editor.
Synagy's server has 35 tools shared with Roblox Studio and Blender. It includes atomic batches (up to 500 operations, one undo step), a profiler and a real C# API lookup. For a wider comparison, see Unity MCP servers compared.
Where is Unity AI the better pick?
- It is official. Unity maintains it, tests it against editor releases and documents it.
- It fits experienced developers. If you already write C#, a quick answer in the editor is faster than a plan.
- Wider asset tools. Unity AI also lists generators for placeholder assets, which Synagy does not offer as a separate tool inside Unity.
- No third party. Some teams prefer to keep project data with Unity only.
Synagy is also still a beta, and the cloud chat runs on credits once plans are on sale. See the pricing page.
FAQ
Is Synagy the same as Unity AI?
No. Unity AI is made by Unity Technologies. Synagy is an independent package by Synagy Games and is not affiliated with Unity. Both run in the Unity 6 editor, and you can use them in the same project.
Which is cheaper, Synagy or Unity AI?
The Synagy package is free, and accounts get 25 Free Credits a day during the beta; payments are paused. Unity AI has a 14-day trial and then a paid plan of about $10 a month, according to a press guide. Prices can change.
Can I use my own agent with Synagy and Unity AI?
Yes. Both have an MCP server. Synagy's is free and needs only Node and a Synagy account. Unity's needs Unity AI, a Unity Cloud link and an accepted connection prompt in the editor.
Which is better for beginners?
Synagy is built for people who do not code: it shows a plan with prices first and tests the build for you. Unity AI assumes more Unity knowledge. If you are unsure, try a tiny idea in both.
Unity is a trademark of Unity Technologies. Synagy is not affiliated with Unity Technologies.
