// Dev
Someone put a NES CPU inside a 4B-parameter model. Mario runs. Slowly.
Drew Breunig built a working 6502 emulator into the weights of Qwen3.5-4B, with Claude Opus 5.5 doing much of the legwork.
// TAG
#weird science
// TAG
Drew Breunig built a working 6502 emulator into the weights of Qwen3.5-4B, with Claude Opus 5.5 doing much of the legwork.