Roblox Studio AI Tools: Assistant, Cube 3D and the Studio MCP Server

When people search for Roblox Studio AI they usually mean one of three things, and it helps to keep them apart:

1. Assistant, the AI helper built into Studio. Click Assistant on the right side of the top bar and type a request.
2. AI content generation: meshes, procedural models, materials and textures generated from a text prompt.
3. External AI agents such as Claude, connected to Studio through the official Studio MCP server.

According to Roblox's documentation, Assistant can answer development questions, explain selected code, create and edit scripts and objects directly in your place, insert free or paid assets from the Creator Store after you pick them, and restyle parts with generated materials. A Planning Mode (type /plan) writes an editable plan first, and nothing runs until you click Build. A screen capture helper lets Assistant look at your viewport and answer questions like whether the lighting looks right.

You can also bring your own API key from Anthropic, OpenAI or Google Gemini in Assistant's settings (Manage API Keys) and choose which model Assistant uses. Usage on your own key is billed by that provider.

Cube is Roblox's own generative AI system for 3D. Roblox announced it in March 2025 and released the first model, Cube 3D, as open source on GitHub and Hugging Face, together with a Mesh Generation API in Studio.

In Studio today this shows up as Assistant commands:

• /generate_mesh creates a textured 3D mesh from a text prompt or a reference image. Select a Part first and Assistant uses it as a bounding box. You can set a maximum triangle count (10,000 by default) to keep models light.
• /generate_procedural_model builds adjustable models from basic parts. The docs list a limit of 50 generations in a rolling 24 hours.
• Segmentation splits a generated model into named parts, for example a car body and four wheels, so each piece can be scripted separately.

Scripts can also generate models while the game runs with GenerationService:GenerateModelAsync, which currently supports two fixed schemas, Car5 and Body1. Roblox has also shown research called CubePart for part-by-part generation and says it will come to Studio later. Separate Texture Generator (beta) and Material Generator tools handle surfaces.

MCP (Model Context Protocol) is an open standard that lets an AI app talk to other software. Roblox now ships a Roblox Studio MCP server built into Studio. Once it is on, a connected AI client can read and edit scripts, explore the Explorer tree, run Luau code, start and stop playtests, read the Output and take screenshots of the viewport.

1. Update Roblox Studio, open Assistant, click the three dots and choose Manage MCP Servers.
2. Turn on Enable Studio as MCP server.
3. Under Quick connect, switch on your client. The list includes Claude Desktop, Claude Code, Cursor, Codex CLI, Gemini CLI, Visual Studio Code and Antigravity.
4. If quick connect is not available, add the JSON configuration shown below to your client (in Claude Desktop: Settings, Developer, Edit Config) and restart it.
5. A green indicator in the MCP settings shows how many clients are connected.

You may still find the older open source project github.com/Roblox/studio-rust-mcp-server. Its README now says it is no longer being actively developed and recommends the built-in server instead.

There is no single best AI for Roblox Studio. Each Roblox Studio AI tool fits a different job:

• Built-in Assistant is the easiest start. It already knows your place, runs inside Studio and needs no extra installs. Good for questions, small scripts, inserting assets and quick 3D generation.
• External agents over MCP, such as Claude Code or Claude Desktop, suit bigger multi-step tasks: reorganizing many scripts, writing a system across server and client, then playtesting and reading errors in a loop.
• Cube-powered generation is for props and models, not for gameplay logic.

Whatever you choose, AI output is a first draft. It can use the wrong service, forget a debounce or put a script in the wrong place. Someone has to read the code, test it and fix it. Kids who already understand events, client and server, and data saving get far more out of AI than kids who only copy. Our tutorials, like the leaderboard and door guides, build exactly that foundation.

Claude requires users to be 18 or older. Anthropic may ask for age verification through its partner Yoti if it detects signs that a user is under 18. So a child or teen should not have their own Claude account. The accurate setup for families is parent-supervised: the parent owns and signs into Claude on their own computer, connects it to Studio, and sits with the teen while they describe what they want to build. Other AI tools have their own age rules, so check each one.

• Roblox warns that MCP clients can read and modify content in your open places. Connect only clients you trust and approve tool actions one by one.
• Publish or save a copy before letting any AI make large changes.
• Never paste a Roblox password or login cookie into any AI tool or plugin.
• Roblox has added age checks for collaboration: Team Create with other people requires an age check, and working with people outside your age group needs trusted friends or parental permission.
• Games that let players chat with AI characters must follow Roblox's generative AI rules, and extended AI conversations require an 18+ Restricted label.

Roblox Studio AI makes building faster, but only when the person using it understands what the code does. That is the idea behind our Roblox + AI program for teens aged 14–17.

• 4 lessons per month, 120 minutes each.
• Lesson 1: build a complete shooter game in one session.
• Lessons 2–4: 3D models, animations and VFX made with AI tools.
• Students keep their game and can publish it.

Younger students (8–13) start with the core Roblox Studio course: 60-minute 1-on-1 Zoom lessons with Vlad Pomazanets, CA$280 for 4 lessons, first lesson free, and unused lessons refundable within 14 days. Lessons are in English, Ukrainian or Russian, and we will match a time in your time zone.

Book a free first lesson to see which path fits your child.