About BuildGPT
From ModrinthA simple mod that uses ChatGPT to generate structures on command with /buildgpt
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.
Highlights
From source dataGame versions
Supports 32 Minecraft versions, the newest being 26.2.
Loaders
Runs on Fabric and Quilt.
Footprint
Rated a light load on a server.
BuildGPT on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Fabric, Quilt
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 1.1.0-26.x, released 2026-04-12
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.21.3 to 26.2 (13 versions) | 26.2 |
| Quilt | 1.21.3 to 26.2 (13 versions) | 26.2 |
From 5 recorded builds of BuildGPT.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.1.0-26.x | 2026-04-12 | 26.1 to 26.2 (4 versions) | Fabric, Quilt |
| 1.1.0-1.21.x | 2026-04-12 | 1.21.3 to 1.21.11 (9 versions) | Fabric, Quilt |
| 1.0.2.1 | 2026-03-30 | 1.21.3 to 1.21.11 (9 versions) | Fabric, Quilt |
| 1.0.3 | 2026-03-30 | 26.1 | Fabric, Quilt |
| 1.0.2 | 2025-12-30 | 1.21.3 to 1.21.11 (9 versions) | Fabric, Quilt |
Run BuildGPT on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogWorld generation
Changes or adds to how new terrain, biomes and structures are created.
Runs on your server
From source side supportModrinth lists BuildGPT as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- FabricQuilt
- Runs on
- Serverrequired on the server
- Game versions
- 26.2 and 31 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-02Open ↗
- ✓AuthorJonas_Jones, as published on Modrinth
- ✓LicenseCC0-1.0Free











