Pacific Design/ artificial intelligence

the lab · status: live · 9 instruments · updated 2026-08-29

The Lab

Reading about a mechanism tells you what it does; holding the knobs tells you why. These are working instruments — a neural network you can train, a tokenizer you can retrain, an attention head you can steer — all running live in your browser. Nothing to install, nothing sent anywhere: the machines are on this page.

  1. Train a neural networkwatch a decision boundary get carved in real time
  2. Walk the loss landscapedrop a ball, pick a step size, watch it learn or explode
  3. Train a tokenizerwatch a vocabulary assemble itself out of characters
  4. Drive an attention headqueries, keys, and a softmax you can feel
  5. Sample from a language modelthe temperature knob, attached to an honest little model
  6. Teach an agentdraw a maze, watch Q-learning adapt — then betray it
  7. See your voiceyour microphone, rendered the way models hear
  8. Steer the denoiserthe guidance knob, from ignoring the prompt to frying it
  9. Hunt for neighborsexact retrieval vs the fast guess, recall meter running