Models API Layers API Callbacks API Ops API Optimizers SGD RMSprop Adam AdamW Adadelta Adagrad Adamax Adafactor Nadam Ftrl Lion Lamb Loss Scale Optimizer MultiOptimizer OptimizerMap Learning rate schedules API Muon Metrics Losses Data loading Tree API Built-in small datasets Keras Applications Mixed precision Multi-device distribution RNG API Quantizers Scope Rematerialization Utilities