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File attachments

Attach files to a message so the assistant can see them in context (subject to your deployment’s limits and policies).

What is usually supported

Kind Typical support
Images Common formats such as PNG, JPEG, GIF (exact list set by administrators).
Other files May be disabled or limited; ask your admin if uploads fail or options are missing.

The app generally validates size and type on both browser and server so oversized or disallowed files are rejected early.

How to attach

  1. Click the attachment or paperclip control in the message input.
  2. Choose one or more files (if the UI allows multiples).
  3. Confirm previews look correct, add your prompt, then send.

Writing a good prompt with an image

  • Describe the task — “Extract the three bullet points from this slide” or “What chart type is this?”
  • State constraints — “Answer in one paragraph” or “List numbers only if visible in the image.”
  • Avoid sensitive data if your policy restricts certain content—even if the model can read the file.

Limits and errors

  • File size — If upload fails immediately, try a smaller image or compress it.
  • Type — If the server rejects the MIME type, convert to PNG or JPEG.
  • Corporate networks — Rarely, proxies block multipart uploads; try another network or contact IT.

Administrators configure limits via environment variables (e.g. max bytes and allowed image types).

Privacy

  • Treat uploads like organizational data: use the same rules as email or shared drives.
  • Guest sessions may still store attachments server-side for the chat record—do not upload classified or personal data unless policy allows.

See also