# Concepts for GitHub Copilot

Learn the core concepts that you'll need to understand GitHub Copilot.

## Links

* [Completions for GitHub Copilot](/en/copilot/concepts/completions)

  Learn how Copilot can provide inline suggestions.

* [About GitHub Copilot Chat](/en/copilot/concepts/chat)

  Learn how you can use GitHub Copilot Chat to enhance your coding experience.

* [Concepts for GitHub Copilot agents](/en/copilot/concepts/agents)

  Learn how GitHub Copilot can independently execute tasks across the software development lifecycle.

* [About cloud and local sandboxes for GitHub Copilot](/en/copilot/concepts/about-cloud-and-local-sandboxes)

  Cloud and local sandboxes provide isolated execution environments that let Copilot safely interact with code, tools, filesystem, and network resources securely on your local machine or in fully isolated cloud environments.

* [GitHub Copilot usage metrics](/en/copilot/concepts/copilot-usage-metrics)

  Track how your teams are using and adopting GitHub Copilot with detailed usage metrics.

* [Concepts for prompting GitHub Copilot](/en/copilot/concepts/prompting)

  Learn how to interact with GitHub Copilot to get the best results.

* [Concepts for providing context to GitHub Copilot](/en/copilot/concepts/context)

  Learn how GitHub Copilot gathers contextual information to provide relevant responses to your prompts.

* [Concepts for AI tools](/en/copilot/concepts/tools)

  Learn about different Copilot tools and how they can be used to help develop software.

* [Models for GitHub Copilot](/en/copilot/concepts/models)

  Learn about the AI models available for GitHub Copilot.

* [Usage limits for GitHub Copilot](/en/copilot/concepts/usage-limits)

  Learn about GitHub Copilot usage limits and what to do if you hit a limit.

* [GitHub Copilot billing](/en/copilot/concepts/billing)

  Understand billing and usage for GitHub Copilot.

* [Network settings for GitHub Copilot](/en/copilot/concepts/network-settings)

  You can connect to GitHub Copilot through an HTTP proxy and use custom certificates.

* [Enterprise concepts for GitHub Copilot](/en/copilot/concepts/enterprise)

  Understand how to govern and manage GitHub Copilot across your enterprise.