CraftGPT: A ChatGPT-like AI Working in Minecraft

Metaverse Planet September 29, 2025Last Updated: September 29, 2025

1 1 minute read

A Minecraft player built a ChatGPT-like language model powered by Redstone circuits. The artificial intelligence with five million parameters takes about 2 hours to generate one answer.

We are familiar with the Minecraft community pushing the boundaries to create incredible structures. Now, artificial intelligence has been added to these structures. The YouTube channel sammyuri managed to run a similar Large Language Model (LLM) with ChatGPT functionality inside Minecraft using Redstone. Its name, CraftGPT, was chosen as a reference to this connection.

Redstone is one of the most admired elements in Minecraft. Many automations, including complex machines and even functional computers, can be realized with Redstone. This capability has now been extended with an AI-based chatbot.

Featuring 5 Million Parameters

The details of the constructed CraftGPT are quite impressive. The ChatGPT-like LLM is designed as a Redstone and ROM behemoth with 5,087,280 parameters. The parameter count is incredibly small compared to modern models, which have billions of parameters. Even AlexNet, considered the ancestor of all AI, had 60 million parameters. Nevertheless, in the blocky world of Minecraft, this is considered a groundbreaking achievement.

The model was trained on simple English conversations using the TinyChat dataset with Python. Sammyuri explained that the model was first trained externally and then run inside Minecraft using Redstone circuits. That is, the learning process did not occur in the game, but the trained model was made to function within the Minecraft environment. The model has a vocabulary of 1,920 tokens. All of this combines to create a functional, yet extremely slow, chatbot operating within Minecraft.

The machine, consisting of approximately 1020×260×1656 blocks (a total of 439 million blocks), naturally cannot be viewed within the normal draw distance. Performance is, as expected, quite limited. Generating a single answer takes about two hours on a high-performance Redstone server. Therefore, this project should be viewed as a proof of concept rather than a practical tool.

For years, Minecraft players have created calculators, functional hard drives, and even emulators for games like Doom, all powered by Redstone. However, meticulously establishing millions of logical connections to build a model at the level of an artificial neural network is an entirely different dimension.