Show HN: I trained a 125M model to autocomplete piano on-device
By simedw · 2026-08-20 · 43 points · 8 comments
https://simedw.com/2026/08/20/midi-autocomplete/
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The mode…
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