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

# Smart Compose

> AI inline autocomplete that finishes your sentences as you write a reply, aware of who you're emailing and the thread you're in.

Smart Compose suggests how to finish your sentence as you type a reply or a new
email. The suggestion appears as **grey ghost text** after your cursor, press
**Tab** to accept it, or just keep typing to ignore it.

It is **on by default**. Nothing extra to enable.

## How it works

As you write, Custral asks an AI model for a short continuation and shows it
inline. The suggestion is **context-aware**: it knows

* **who you're writing to**: so "Hey Dan" continues naturally with the
  recipient's name,
* **the subject** of the email, and
* **the most recent message in the thread** you're replying to,

so the completion fits the actual conversation rather than being generic.

Suggestions are short by design (a clause or a sentence), update as you keep
typing, and never appear in the middle of an existing word you'd be overwriting.

## Using it

1. Start writing a reply (or a new email) as normal.
2. Pause for a moment. A grey suggestion appears after your cursor.
3. Press **Tab** to accept it. The text is inserted and a fresh suggestion may
   follow.
4. Keep typing to dismiss the suggestion and write your own words.

The suggestion is never sent or saved on its own. Only text you accept (or
type) becomes part of your email.

## Turning it off

Go to **Settings → Client Settings → Email composer** and toggle **Smart
compose** off. The setting follows your account, so it applies wherever you use
Custral. Turn it back on from the same place at any time.

## Troubleshooting

<AccordionGroup>
  <Accordion title="No suggestions appear">
    * Smart compose may be turned off, check **Settings → Client Settings → Email composer**. - Suggestions only appear
      once you've typed a couple of characters and then paused. They won't show while you're actively typing. - The cursor
      must be at the **end of your text** with nothing selected. - If your workspace AI usage is temporarily exhausted
      (for example in a sandbox), suggestions are skipped silently. Try again later.
  </Accordion>

  <Accordion title="Tab isn't accepting the suggestion">
    Tab only accepts when a grey suggestion is actually visible. If you're inside a snippet with fill-in variables, Tab
    moves between those variables first, finish or dismiss the snippet, then Tab will accept the suggestion.
  </Accordion>

  <Accordion title="The suggestion runs into my last word">
    Accepted suggestions add a leading space when your text ends mid-word, so words don't fuse together. If you still
    see an odd join, just edit it as normal text. The suggestion becomes regular editable content once accepted.
  </Accordion>

  <Accordion title="A suggestion mentioned something that isn't true">
    Smart compose is a writing aid, not a source of facts. Always read a suggestion before accepting it and edit
    anything that's wrong: never accept a date, price, name, or commitment you haven't verified.
  </Accordion>
</AccordionGroup>

## Related

* [Compose & Send](/comms/email/compose): the composer Smart Compose runs in.
* [Templates](/comms/email/templates): reusable snippets for longer canned text.
* [Custral AI overview](/ai/overview): the broader AI features in Custral.


## Related topics

- [AI Writing Assistance](/comms/email/ai-assist.md)
- [Email](/comms/email/overview.md)
- [Get started with Email](/comms/email/getting-started.md)
- [Troubleshooting](/comms/email/troubleshooting.md)
- [Smart lists](/data/collections/queue.md)