
BuildGPT
I don't know my version or loader
This mod adds a /buildgpt command that allows the player to place AI generated structures into the world with a customizable prompt.
Setup
An OpenAI Key is required for this mod in order to work.
create a file .openaikey in the config folder or run the /buildbpt command with valid parameters once to generate the file and then place your API Key in there.
The command should now work!
Additionally The API Key requires account credits on OpenAI!
Command
The command has 2 modes:
Bound
/buildgpt bound <x> <y> <z> <x> <y> <z> <prompt>
This mode allows the user to set a bounding box outside of which the mod won't place any blocks.
The prompt is directing ChatGPT to generate a structure within those bounds but the mod also has a check after the response, that filters out any blocks outside the bounding box.
Unbound
/buildgpt unbound <x> <y> <z> <prompt>
This mode only has a starting point from which the AI will (in most cases) generate the structure towards increasing coordinates.
Of course this is not always the case as ChatGPT can sometimes return funny responses with unexpected behaviour, which is why the bound mode exists and the unbound mode should by used with caution, since placed blocks cannot be undone. During testing, I noticed that structures will usually not exceed a 20x20x20 block cube unless prompted to do otherwhise.
Prompt
There is a predefined prompt in the Mod, meaning that the user is only required to input the building name or description into the <prompt> field of the command, since the mod requires the response to be formatted a certain way.
The prompt can also be overwritten by inputting a custom prompt into the <prompt> field of the command.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 26.1, 26.1.1, 26.1.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as buildgpt-1.1.0-26.x.jar — drop this file into the mods folder
- Download size: 26 KB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.