Small browser-only experiments on the CRT. Daily seeds, amber scores, nothing leaves your machine. Pick a lab.

• lab/01liveScale Arenaratio bets · powers of tenBet how many times bigger, on a log scale. A powers-of-ten zoom reveals the truth.play →
• lab/02liveMAGNITUDE RUN90% intervals · calibrationBracket eight estimates with 90% intervals and find out if you're overconfident.play →
• lab/03liveEval harnessthreshold · ROC · κSet a ship threshold with live ROC and PR curves, then grade borderline outputs.play →
• lab/04livePrompt forgetoken budget · red teamForge a prompt under a token budget, survive three red-team injection waves, version it.play →
• lab/05liveSecure opstower defence · WAFDefend five gates from real attack traffic and write your own WAF regex.play →
• lab/06liveGradient Descent Golf3D · optimisers as clubsSix real loss surfaces in 3D. SGD, Momentum, Nesterov, RMSProp and Adam are your clubs.play →
• lab/07liveOverfit or Notbias vs variance · CVRidge, kNN or trees; cross-validate, see the variance fan, find double descent.play →
• lab/08liveAttention Lens12 heads · WinogradInterrogate twelve attention heads to find who 'it' really is.play →
• lab/09liveNeuron Foundrylive training · backpropDesign a neural net and train it live in your browser. Hit 95% with the fewest params.play →
• lab/10liveEmbedding Galaxyword vectors · 3-DFly through 8,000 words placed by meaning and solve analogies like king − man + woman.play →
• lab/11liveCNN Vision Labreal CNN · adversaryDraw a digit, watch every filter develop, then fool the network with a few pixels.play →
• lab/12liveRL ArenaQ-learning · SARSATrain a knight live in pixel dungeons. Cliffs, wind, a key vault, and a decoy chest.play →

Lab blog← Home