S&Box LLM Proof of Concept
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New — just published
Proof of concept for running a real LLM entirely inside s&box using a custom C# GPT-Neo inference engine. No APIS, fully local
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hard_drive
32 MB
folder
41 files
build
Engine v28
bolt
Updated recently
About This Package
S&Box LLM POC is a proof of concept demonstrating that a transformer language model can run entirely inside the s&box game runtime without external AI software, servers, APIs, Python, Ollama, or separate executables.
The project includes a custom C# inference engine capable of loading packaged model weights, GPT-2 tokenization, GPT-Neo transformer inference, global and local attention, and autoregressive text generation directly within s&box.
The current implementation runs TinyStories-Instruct-1M locally on the CPU and has been numerically validated against the original PyTorch/Hugging Face model. Generated token sequences match the reference implementation while inference runs on an s&box worker thread to keep the game responsive.
The end goal of the POC is a simple in-game chat interface powered entirely by an LLM running inside s&box itself.
From this, I hope other developers can see what is possible and potentially use small LLM to power NPCs, game functions or even whole games.
!!!!NOTE!!!!!!:
This is not meant to be even close to an actual useable ChatGPT or Claude clone, the model (TinyStories-Instruct-1M) is quite literally 1/2000 the size of any flagship model. The findings in this project can be used to build larger language model projects
Media (5)
4
Total Users
8
Total Sessions
26 min
Total Playtime
Package ID:
jeffskitchen.llm_poc
Created:
2026-08-17 05:09 UTC
Updated:
2026-08-17 04:58 UTC
Type:
game
Public:
Yes
Version:
342521
files:
41
Size:
32.1 MB
Engine Version:
28
Asset Version ID:
342521
Version Created:
2026-08-17 04:58 UTC
Hash:
1786942705
Manifest: Open manifest
Error Rate:
20.00%
Multiplayer:
Unknown
Versus:
Unknown
Co-op:
Unknown
Max Players:
64
Min Players:
1
Tick Rate:
50
Game Network Type:
Multiplayer
Map Select:
Unrestricted
Map List:
facepunch.flatgrass
Rank Type:
None
Per Map Ranking:
false
Leaderboard Type:
None
Cs Proj Name:
Startup Scene:
scenes/minimal.scene
Resources:
Game Settings:
Code Package References:
342521
Aug 17, 2026
Updated model to publish correctly
342519
Aug 17, 2026
Changes on 2026-08-17