# Keras API reference
### [Models API](/api/models/)
- [The Model class](/api/models/model)
- [The Sequential class](/api/models/sequential)
- [Model training APIs](/api/models/model_training_apis)
- [Model saving & serialization APIs](/api/models/model_saving_apis)
### [Layers API](/api/layers/)
- [The base Layer class](/api/layers/base_layer)
- [Layer activations](/api/layers/activations)
- [Layer weight initializers](/api/layers/initializers)
- [Layer weight regularizers](/api/layers/regularizers)
- [Layer weight constraints](/api/layers/constraints)
- [Core layers](/api/layers/core_layers/)
- [Convolution layers](/api/layers/convolution_layers/)
- [Pooling layers](/api/layers/pooling_layers/)
- [Recurrent layers](/api/layers/recurrent_layers/)
- [Preprocessing layers](/api/layers/preprocessing_layers/)
- [Normalization layers](/api/layers/normalization_layers/)
- [Regularization layers](/api/layers/regularization_layers/)
- [Attention layers](/api/layers/attention_layers/)
- [Reshaping layers](/api/layers/reshaping_layers/)
- [Merging layers](/api/layers/merging_layers/)
- [Locally-connected layers](/api/layers/locally_connected_layers/)
- [Activation layers](/api/layers/activation_layers/)
### [Callbacks API](/api/callbacks/)
- [Base Callback class](/api/callbacks/base_callback)
- [ModelCheckpoint](/api/callbacks/model_checkpoint)
- [TensorBoard](/api/callbacks/tensorboard)
- [EarlyStopping](/api/callbacks/early_stopping)
- [LearningRateScheduler](/api/callbacks/learning_rate_scheduler)
- [ReduceLROnPlateau](/api/callbacks/reduce_lr_on_plateau)
- [RemoteMonitor](/api/callbacks/remote_monitor)
- [LambdaCallback](/api/callbacks/lambda_callback)
- [TerminateOnNaN](/api/callbacks/terminate_on_nan)
- [CSVLogger](/api/callbacks/csv_logger)
- [ProgbarLogger](/api/callbacks/progbar_logger)
- [BackupAndRestore](/api/callbacks/backup_and_restore)
### [Optimizers](/api/optimizers/)
- [SGD](/api/optimizers/sgd)
- [RMSprop](/api/optimizers/rmsprop)
- [Adam](/api/optimizers/adam)
- [Adadelta](/api/optimizers/adadelta)
- [Adagrad](/api/optimizers/adagrad)
- [Adamax](/api/optimizers/adamax)
- [Nadam](/api/optimizers/Nadam)
- [Ftrl](/api/optimizers/ftrl)
### [Metrics](/api/metrics/)
- [Accuracy metrics](/api/metrics/accuracy_metrics)
- [Probabilistic metrics](/api/metrics/probabilistic_metrics)
- [Regression metrics](/api/metrics/regression_metrics)
- [Classification metrics based on True/False positives & negatives](/api/metrics/classification_metrics)
- [Image segmentation metrics](/api/metrics/segmentation_metrics)
- [Hinge metrics for "maximum-margin" classification](/api/metrics/hinge_metrics)
### [Losses](/api/losses/)
- [Probabilistic losses](/api/losses/probabilistic_losses)
- [Regression losses](/api/losses/regression_losses)
- [Hinge losses for "maximum-margin" classification](/api/losses/hinge_losses)
### [Data loading](/api/data_loading/)
- [Image data loading](/api/data_loading/image)
- [Timeseries data loading](/api/data_loading/timeseries)
- [Text data loading](/api/data_loading/text)
### [Built-in small datasets](/api/datasets/)
- [MNIST digits classification dataset](/api/datasets/mnist)
- [CIFAR10 small images classification dataset](/api/datasets/cifar10)
- [CIFAR100 small images classification dataset](/api/datasets/cifar100)
- [IMDB movie review sentiment classification dataset](/api/datasets/imdb)
- [Reuters newswire classification dataset](/api/datasets/reuters)
- [Fashion MNIST dataset, an alternative to MNIST](/api/datasets/fashion_mnist)
- [Boston Housing price regression dataset](/api/datasets/boston_housing)
### [Keras Applications](/api/applications/)
- [Xception](/api/applications/xception)
- [EfficientNet B0 to B7](/api/applications/efficientnet)
- [VGG16 and VGG19](/api/applications/vgg)
- [ResNet and ResNetV2](/api/applications/resnet)
- [MobileNet and MobileNetV2](/api/applications/mobilenet)
- [DenseNet](/api/applications/densenet)
- [NasNetLarge and NasNetMobile](/api/applications/nasnet)
- [InceptionV3](/api/applications/inceptionv3)
- [InceptionResNetV2](/api/applications/inceptionresnetv2)
### [Mixed precision](/api/mixed_precision/)
- [Mixed precision policy API](/api/mixed_precision/policy)
- [LossScaleOptimizer](/api/mixed_precision/loss_scale_optimizer)
### [Utilities](/api/utils/)
- [Model plotting utilities](/api/utils/model_plotting_utils)
- [Serialization utilities](/api/utils/serialization_utils)
- [Python & NumPy utilities](/api/utils/python_utils)
- [Backend utilities](/api/utils/backend_utils)
### [KerasTuner](/api/keras_tuner/)
- [HyperParameters](/api/keras_tuner/hyperparameters)
- [Tuners](/api/keras_tuner/tuners/)
- [Oracles](/api/keras_tuner/oracles/)
- [HyperModels](/api/keras_tuner/hypermodels/)