Limits and supported formats
This page lists the user-facing limits in Modelyx: which files you can upload, how large they can be, how many files reach the Cloud Sandbox, how long voice recordings can be, what image and video generation can produce per turn, how often tasks can run and what Modelyx cannot access.
Supported upload formats
| Type | Formats |
|---|---|
| Images | JPG, PNG, GIF, WebP |
| Documents | PDF, Word, Excel, PowerPoint, Markdown, plain text, CSV, JSON |
| Code | Code files |
| Audio and video | Audio and video files |
In Agent mode, images, audio and video are always accepted, because the agent can process them with tools. Scanned documents are read with OCR on a best-effort basis.
You can add files with + → Attachments (Upload File or Image, Upload Folder), drag and drop, or paste from the clipboard.
Size limits
| Item | Limit |
|---|---|
| Video upload | Up to 500 MB |
| File copied into the Cloud Sandbox | Up to 500 MB per file |
| Voice input | Up to 1 minute per recording |
| File storage | Depends on your plan. |
Cloud Sandbox file sync
| Limit | Value |
|---|---|
| Files copied into the sandbox per chat sync | Up to 50 |
| Size per file | Up to 500 MB |
| Sandbox scope | One isolated sandbox per chat |
| Idle sandboxes | Recreated automatically after a long idle period; older files may not survive |
Result files the agent exports are saved to your Resources with a download link, so keep anything important there.
Media generation
| Item | Limit |
|---|---|
| Different images per turn | Up to 8 (variants of one prompt use Number of Images) |
| Reference images for one image | Depends on the model; the app tells you if you pass too many or too few |
| Reference images for one video | Up to 9 |
| Videos per turn | One |
| Video length | About 4 to 15 seconds; up to about 30 seconds for video-to-video and Make video |
| Source clips for video-to-video | Up to 3 MP4 or MOV clips |
| Video resolution | 480p, 720p or 1080p, depending on the model |
| Make video (3D previs to video) | 480p or 720p; takes about 4 minutes, sometimes up to 7 |
| HTML and React artifacts | Download as source only; no export to PNG, GIF or video |
| SVG artifacts | Download as PNG, Download as SVG, Copy as Image |
| Telegram captions | Up to 1024 characters |
Video generation is asynchronous and takes minutes.
Schedules
| Automation | Frequency and limits |
|---|---|
| Scheduled | Hourly (also Daily or Weekly on one or several weekdays) |
| Heartbeat | Every 10 minutes |
| Max runs | Default Unlimited |
Credit balance
Image generation, video generation and Cloud Sandbox runs need a positive credit balance; see Credits and usage.
Mobile browser
The web app works in a mobile browser with Home, chats, Tasks and Settings. Memory, Resources, Pages and the Generation studios are not available on mobile.
What Modelyx cannot access
| Modelyx cannot access | Details |
|---|---|
| Files and folders on your computer | Only files you upload reach Modelyx. Local file access is planned for the desktop app. |
| Accounts you have not connected | Agents reach your services only through custom MCP connectors you set up. One-click connectors are coming soon. |
| Private data on public platforms | Public data collection covers public pages, listings and profiles only. |
| Other chats' sandboxes | Each chat's Cloud Sandbox is isolated from the others. |