Understand machine learning
by seeing it move

Interactive tools that turn abstract math into visual intuition

∇

Gradient Descent Visualizer

Watch SGD, Momentum, RMSProp and Adam race across 3D loss surfaces in real time. Compare optimizers and hyperparameters side-by-side.

3DOptimizersInteractive
Open →
⊕

Neural Network Playground

Build and train small networks layer by layer, watching decision boundaries and loss curves evolve live.

NetworksBackpropInteractive
Open →
✏

MNIST Digit Recognizer

Draw a digit and watch a neural network classify it in real time. Dissect individual hidden neurons to see what features they detect.

CNNMNISTInteractive
Open →
Aa

Tokenizer Playground

See how AI models break text into tokens. Compare tokenizers from GPT-4, LLaMA, BERT, and more side-by-side.

NLPTokenizationInteractive
Open →
?=

Zero-Shot Classification

Classify any text into custom categories — no training needed. See how transfer learning lets models generalize to new tasks.

NLPClassificationInteractive
Open →