Soul Player C64 – A real transformer running on a 1 MHz Commodore 64

https://github.com/gizmo64k/soulplayer-c64

Article

  • 25K-parameter transformer model running entirely on a Commodore 64 at 1 MHz
  • Produces broken/nonsensical sentences — proof of architecture, not capability
  • Demo available on project page; live chat mostly says hello/bye

Discussion

  • Skeptics question whether broken output proves the architecture ‘works’
  • Nostalgia strong: Vic-20 random sentence generators, ELIZA comparisons, Load’*’,8,1 memories
  • Debate on whether compute or architecture is the real bottleneck for small models
  • ‘i hate ai, and i love the c64, but i’ll allow it’ sums up the thread

Discuss on HN


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Added Apr 21, 2026
Modified Apr 21, 2026