> ## Documentation Index
> Fetch the complete documentation index at: https://docs.double.bot/llms.txt
> Use this file to discover all available pages before exploring further.

# Welcome to Double

<Tip>Anthropic's new [Sonnet 3.5 2024-10-22](/features/models) model is now available!</Tip>

Double is an AI coding assistant engineered for performance. It’s designed with great craftsmanship by people who care a lot about getting the small details right, [try it in VS Code for free](vscode:extension/doublebot.doublebot). We are backed by Y Combinator.

### Main features

<CardGroup cols={2}>
  <Card title="Chat" icon="comments" href="/features/chat">
    GPT-4o or Claude 3.5 Sonnet chat box in your sidebar. Add code context to your questions.
  </Card>

  <Card title="CodeSnap" icon="bolt" href="/features/codesnap">
    Generate, review, and apply changes to your code with 1 click.
  </Card>

  <Card title="Autocomplete" icon="wand-sparkles" href="/features/autocomplete">
    Tab-autocomplete while you code.
  </Card>

  <Card title="Inline Edit (Preview)" icon="code-compare" href="/features/inline">
    Command, review, and apply changes to your code within your editor.
  </Card>

  <Card title="Custom Instructions" icon="book-open" href="/features/instruction">
    Personalize the AI's replies to your preference.
  </Card>

  <Card title="Key Bindings" icon="key" href="/features/keybindings">
    Skip the mouse. Stay on the keyboard.
  </Card>

  <Card title="Models" icon="head-side-brain" href="/features/models">
    All of the state of the art models available in one place. New models are added the same day
    they are released.
  </Card>
</CardGroup>

### FAQ

<AccordionGroup>
  <Accordion title="Do you have a Jetbrains, Neovim, Visual Code, or other extension?">
    We currently only support VS Code but are working on other extensions. [Join this
    waitlist](https://forms.gle/XPwEqbgjNYvyzV2g6) to be notified when we release new extensions.
  </Accordion>

  <Accordion title="Can I change the default keybindings?">
    Yes, you can change the default keybindings to your liking, [here's how](/features/keybindings).
  </Accordion>

  <Accordion title="How do I change the model?">
    To change the models, go into the VS Code settings, and look under Extensions>Double.
    [Here](/features/models) .
  </Accordion>

  <Accordion title="How do I install VS Code?">
    You can download and install VS Code [here](https://code.visualstudio.com/Download).
  </Accordion>
</AccordionGroup>