About Keras Getting started Developer guides The Functional API The Sequential model Making new Layers & Models via subclassing Training & evaluation with the built-in methods Customizing what happens in `fit()` Writing a training loop from scratch Serialization & saving Writing your own Callbacks Working with preprocessing Layers Working with recurrent neural networks Understanding masking & padding Multi-GPU & distributed training Transfer learning & fine-tuning Training Keras models with TensorFlow Cloud Hyperparameter Tuning Keras API reference Code examples Why choose Keras? Community & governance Contributing to Keras KerasTuner