A real transformer language model running locally on a stock Game Boy Color

I got a real transformer language model running locally on a stock Game Boy Color!

maddiedreese ran Andrej Karpathy’s TinyStories-260K on a stock Game Boy Color with INT8 weights, fixed-point math, an MBC5 ROM, bank-switched cartridge storage, and KV cache in cartridge SRAM; the demo uses no phone, PC, Wi‑Fi, link cable, or cloud inference, but output is extremely slow and gibberish.

Why it matters: HKR-H/K/R all pass: a named first-person experiment with concrete model and memory details. Impact stays low-featured because it is a Reddit hardware hack with slow, garbled output, not a usable product or model release.