How to Use ChatGPT in Roblox Studio: 4 Official Methods (2026)

To use ChatGPT in Roblox Studio, install Roblox’s official Roblox Studio plugin in the ChatGPT desktop app, then turn on Enable Studio as MCP server and the ChatGPT (codex) quick-connect switch in Studio’s Assistant settings. After that, ChatGPT can read and edit your open place, write Luau scripts and run playtests for you.

That’s the most direct route as of November 2026, but it isn’t the only one. You can also run Studio’s own Assistant on an OpenAI model with an API key, use the Codex command-line tool, or simply copy code out of ChatGPT on the web. Here’s how each one works and which to pick.

The four official options at a glance

All four rely only on tools from Roblox and OpenAI. You don’t need anything from an unofficial download site, and you should never hand your Roblox password to a “ChatGPT plugin” that asks for it.

How Studio connects to AI tools

Roblox Studio now has a built-in MCP server. MCP (Model Context Protocol) is a standard way for an AI app to call tools in another program. When it’s switched on, an outside assistant can inspect your place, create and edit scripts and instances, read console output and start or stop playtests.

Roblox documents this on its Studio MCP server page, which lists quick-connect options for Codex CLI, Claude Code, Claude Desktop and Cursor, plus a manual JSON or CLI configuration. To bring ChatGPT into the picture, Roblox also publishes an official agent plugin on GitHub that connects the ChatGPT desktop app and Codex to that server. According to its README, the plugin holds only configuration and skill instructions, not code of its own.

One caveat: some third-party guides say ChatGPT isn’t on the Roblox docs quick-connect list, while the plugin README says to flip a ChatGPT (codex) switch. Studio and its docs change often, so expect labels to differ a little from what you see here.

Method 1: ChatGPT desktop app (recommended)

Requirements: Roblox Studio on macOS or Windows, signed in with a place open, and the ChatGPT desktop app for macOS or Windows.

1. Open the ChatGPT desktop app and go to Plugins.
2. Find Roblox Studio and install it.
3. Start a new chat.
4. In Roblox Studio, open Assistant, click the … menu, then go to Settings → MCP Servers. (In older Studio versions this item is called Manage MCP Servers.)
5. Turn on Enable Studio as MCP server.
6. In the same pane, under Quick Connect, turn on ChatGPT (codex).
7. Restart ChatGPT.

Now try a prompt like “Add a part called SpawnPad in the Workspace and write a script that prints a message when a player touches it.” ChatGPT will call Studio’s tools and make the change in your open place.

The README also describes a guided setup: ask the assistant “Get me set up with Roblox Studio” and it checks what’s missing, can install Studio (after your approval) and walks you through the MCP switch.

Method 2: Codex CLI

If you’d rather work in a terminal, Codex is OpenAI’s coding agent and uses the same plugin.

1. Run codex plugin marketplace add Roblox/roblox-studio-agent-plugin.
2. Open /plugins, install Roblox Studio, and start a new thread with /new.
3. In Studio, turn on Enable Studio as MCP server and the ChatGPT (codex) quick-connect switch, as in steps 4 to 6 above.
4. Check the connection with codex mcp list. You should see Roblox_Studio in the list.

Roblox’s MCP documentation says a green indicator next to the MCP setting in Studio confirms that a client is connected.

Method 3: Run Studio’s Assistant on an OpenAI model

Studio ships with its own AI helper, Assistant. Roblox’s external LLM announcement on the Developer Forum says Assistant can use models from Anthropic, OpenAI and Google Gemini with your own API key. This doesn’t give you the ChatGPT app inside Studio. It lets Assistant run on an OpenAI model instead of Roblox’s default.

1. Open Assistant in Studio.
2. Click the … menu in the top-right corner and choose Manage API Keys.
3. Pick OpenAI as the provider and paste your OpenAI API key.
4. Choose an OpenAI model from Assistant’s Model dropdown.

A few things to know:

• Billing: OpenAI’s plans and prices apply to that usage, not Roblox’s.
• Key storage: Roblox says keys are masked in the interface and stored on your device.
• Limited provider list: Only those three providers are offered. A recent forum request asks Roblox to allow custom providers and says the model picker doesn’t always include the newest models, so the OpenAI models you see may lag behind OpenAI’s own lineup.

Method 4: Copy and paste from ChatGPT

ChatGPT on the web or your phone can’t reach Studio, because Studio’s MCP server only runs on your computer. It’s still useful for planning systems, explaining Roblox APIs and drafting Luau.

1. Describe what you want and say it’s for Roblox Luau, including where the script goes (for example, a server Script in ServerScriptService or a LocalScript in StarterPlayerScripts).
2. In Studio, insert the right script type in the right place in the Explorer.
3. Paste the code, then playtest and check the Output window for errors.
4. Paste any error messages back into ChatGPT to fix them.

This is the slowest method, but you review every line before it goes into your game, which is the safest way to learn.

Safety and privacy tips

• Back up first. The plugin README warns that the assistant edits your place directly and some changes can’t be undone from Studio. Save or publish a version before large changes.
• Know what’s shared. Scripts, console output and screenshots from Studio go to your AI provider as part of the conversation. Roblox says the plugin itself collects no telemetry and stores no data.
• Watch what it does to your account. The plugin only makes requests to Roblox under your account for Creator Store search and insert, AI generation, image uploads and documentation lookups.
• Check the results yourself. Playtest the changes and read the Output window rather than relying only on the assistant’s summary.
• Stick to official sources. Community MCP servers exist, but Roblox now recommends its built-in server. Avoid any tool that asks for your Roblox login or cookies.

Which method should you pick?

If you have the ChatGPT desktop app, Method 1 gives you the most hands-off workflow. Developers who live in a terminal will prefer Codex. If you’d rather stay inside Studio and already pay for the OpenAI API, Method 3 is the cleanest. And if you’re learning to code, copy-paste keeps you in control of every line.

These features are moving fast, so menu names, quick-connect options and supported models may change after November 2026. If something doesn’t match, check Roblox’s MCP documentation and the plugin README for the current steps.