Answer
| Mode | Combined attachment limit | Message length |
|---|---|---|
| @ai off | 20 attachments | 128,000 characters |
| Text | 8 mixed attachments | 128,000 characters |
| Image | 8 images | 8,000 characters |
| Video | 1 image | 8,000 characters |
| Audio | No attachments | 8,000 characters |
On web, including phone browsers, each attachment is limited to 32MB. In native iOS and Android, a video over 32MB can be optimized and accepted if the processed video is no more than 128MB. Other attachment types remain limited to 32MB.
Message limits count characters, not tokens or AI allowance. Uploads must pass the selected type’s checks before they can be used.