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

# How to upload a reference file (photo or video) to Carat from Claude

> How to upload a file in Carat's upload window to use it as a reference, the file size limits, and what to do when the window does not open.

To generate from your own photo as a reference, the file has to be **uploaded to Carat's storage**. Attaching a file in the chat and uploading it to Carat are two different things, so you select the original once more in Carat's **upload window**.

## Steps

1. **Ask for work that uses a reference file** (for example, "make a profile image from this photo"). Carat's upload window opens.
2. Under \[Upload a reference file(참조 파일 올리기)], click \[Select a file(파일 선택)] or drag the file in.
3. Selecting the original starts the upload automatically. Wait until it goes **\[Preparing(준비 중)] → \[Uploading(올리는 중)] → \[Ready(준비 완료)]**.
4. Click \[Continue with this file(이 파일로 계속)] and the chat receives a message to use that file, then Carat carries on with the work.

<Note>
  Clicking \[Continue with this file(이 파일로 계속)] before \[Ready(준비 완료)] appears means the file is not picked up. Wait for the status to change to \[Ready(준비 완료)] first.
</Note>

## File size limits

| Type  | Limit  |
| :---- | :----- |
| Image | 12 MiB |
| Audio | 20 MiB |
| Video | 50 MiB |

Files over the limit will not upload. Reduce the resolution of a photo or trim a video and try again.

## If the upload window does not open

The upload window only opens when the AI tool you are using calls Carat's upload feature. **It does not open automatically in every environment.**

* **Say in your request that you want to use a file** — something like "use the attached photo as a reference" gets Carat's upload feature called.
* In an environment without support for the upload window, Carat may ask for a **public image address (HTTPS)** instead. That route supports images only.
* If it still does not go through, attach the file in the AI agent on the Carat app or website instead.

## Related articles

<CardGroup cols={2}>
  <Card title="Using Carat inside Claude (MCP connector)" icon="plug" href="/docs/en/how-to-use/mcp-claude">
    The three connection steps and example requests
  </Card>

  <Card title="Carat's tools do not show up" icon="plug-circle-exclamation" href="/docs/en/troubleshooting/mcp/tools-not-showing">
    Checking the connector, reconnecting, and tool permissions
  </Card>
</CardGroup>