Guide | TensorFlow Core

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class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://www.tensorflow.org/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="TensorFlow" > TensorFlow </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://www.tensorflow.org/learn" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="2" track-type="globalNav" track-name="breadcrumb" track-metadata-position="2" track-metadata-eventdetail="" > Learn </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" 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class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <p> TensorFlow 2 focuses on simplicity and ease of use, with updates like eager execution, intuitive higher-level APIs, and flexible model building on any platform. </p> <p> Many guides are written as Jupyter notebooks and run directly in Google Colab—a hosted notebook environment that requires no setup. Click the <em>Run in Google Colab</em> button. </p> </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-3-up tfo-landing-page-heading" header-position="top" > <div class="devsite-landing-row-inner"> <header class="devsite-landing-row-header" > <div class="devsite-landing-row-header-text"> <h2 id="essential-documentation" data-text="Essential documentation" tabindex="0"> Essential documentation </h2> </div> </header> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/install"><h3 class="no-link" id="install-tensorflow" data-text="Install TensorFlow" tabindex="-1">Install TensorFlow</h3></a> Install the package or build from source. GPU support for CUDA®-enabled cards. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/migrate"><h3 class="no-link" id="migrate-to-tensorflow-2" data-text="Migrate to TensorFlow 2" tabindex="-1">Migrate to TensorFlow 2</h3></a> Learn how to migrate your TF1.x code to TF2. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/keras/overview"><h3 class="no-link" id="keras" data-text="Keras" tabindex="-1">Keras</h3></a> Keras is a high-level API that's easier for ML beginners, as well as researchers. </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-3-up" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/eager"><h3 class="no-link" id="tensorflow-basics" data-text="TensorFlow basics" tabindex="-1">TensorFlow basics</h3></a> Learn about the fundamental classes and features that make TensorFlow work. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/data"><h3 class="no-link" id="data-input-pipelines" data-text="Data input pipelines" tabindex="-1">Data input pipelines</h3></a> The <code translate="no" dir="ltr">tf.data</code> API enables you to build complex input pipelines from simple, reusable pieces. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/effective_tf2"><h3 class="no-link" id="tensorflow-2-best-practices" data-text="TensorFlow 2 best practices" tabindex="-1">TensorFlow 2 best practices</h3></a> Learn about the best practices for effective development using TensorFlow 2. </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-3-up" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/checkpoint"><h3 class="no-link" id="save-a-model" data-text="Save a model" tabindex="-1">Save a model</h3></a> Save a TensorFlow model using checkpoints or the SavedModel format. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/distributed_training"><h3 class="no-link" id="accelerators" data-text="Accelerators" tabindex="-1">Accelerators</h3></a> Distribute training across multiple GPUs, multiple machines or TPUs. </div> </div> </div> </div> <div class="devsite-landing-row-item devsite-landing-row-item-no-media tfo-landing-page-card" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <a href="/guide/function"><h3 class="no-link" id="performance" data-text="Performance" tabindex="-1">Performance</h3></a> Best practices and optimization techniques for optimal TensorFlow performance. </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-1-up devsite-landing-row-100" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <div class="devsite-landing-row-item-description-content"> <h2 class="tfo-landing-page-heading no-link" id="libraries-and-extensions" data-text="Libraries and extensions" tabindex="-1">Libraries and extensions</h2> Explore <a href="/resources">additional resources</a> to build advanced models or methods using TensorFlow, and access domain-specific application packages that extend TensorFlow. </div> </div> </div> </div> </div> </div> </section> <section class="devsite-landing-row devsite-landing-row-2-up devsite-landing-row-100" header-position="top" > <div class="devsite-landing-row-inner"> <div class="devsite-landing-row-group"> <div class="devsite-landing-row-item devsite-landing-row-item-no-media" description-position="bottom" > <div class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <ul class="devsite-landing-row-item-list"> <li class="devsite-landing-row-item-list-item"> <div class="devsite-landing-row-item-list-item-content" icon-position="left" > <a href="https://www.tensorflow.org/decision_forests"> <div class="devsite-landing-row-item-list-item-icon-container" background="grey" foreground="theme" size="medium" > <div class="devsite-landing-row-item-list-item-icon material-icons" aria-hidden="true"> chevron_right </div> </div> </a> <div class="devsite-landing-row-item-list-item-description"> <div class="devsite-landing-row-item-list-item-description-content"> <a href="/decision_forests"><h3 class="tfo-landing-page-heading no-link" id="tensorflow-decision-forests" data-text="TensorFlow Decision Forests " tabindex="-1">TensorFlow Decision Forests </h3></a> A library to train, run and interpret decision forest models (e.g., Random Forests, Gradient Boosted Trees) in TensorFlow. </div> </div> </div> </li> <li class="devsite-landing-row-item-list-item"> <div class="devsite-landing-row-item-list-item-content" icon-position="left" > <a href="https://www.tensorflow.org/hub"> <div class="devsite-landing-row-item-list-item-icon-container" background="grey" foreground="theme" size="medium" > <div class="devsite-landing-row-item-list-item-icon material-icons" aria-hidden="true"> chevron_right </div> </div> </a> <div class="devsite-landing-row-item-list-item-description"> <div class="devsite-landing-row-item-list-item-description-content"> <a href="/hub"><h3 class="tfo-landing-page-heading no-link" id="tensorflow-hub" data-text="TensorFlow Hub" tabindex="-1">TensorFlow Hub</h3></a> A library for the publication, discovery, and consumption of reusable parts of machine learning models. </div> </div> </div> </li> <li class="devsite-landing-row-item-list-item"> <div class="devsite-landing-row-item-list-item-content" icon-position="left" > <a href="https://www.tensorflow.org/tfx/guide/serving"> <div 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