How do I set the aspect ratio and the number of outputs?
The aspect-ratio tiles above the parameters show only the ratios the selected model supports, and the number of outputs is a pill switch in the parameters panel whose choices come from the model itself — usually 1 to 4 for image models, one clip for video — with the estimate multiplying accordingly.
Aspect ratio
Up to eight tiles are offered — 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 and 21:9 — but only those the selected model accepts are shown. LUVI reads the model's own ratio parameter first, and falls back to the list on its model page. Some models express size as a resolution or a size value instead; then the tile row is hidden and the choice lives in the parameters panel.
The ratio is remembered when you switch models, as long as the new model supports it.
Number of outputs
Image models usually expose a count — a pill switch labelled with the model's own choices, typically 1 · 2 · 3 · 4. Video, audio and 3D models return one result per run. The estimate under the Generate button multiplies by the count, and the charge is one ledger line for the run.
There is no LUVI-wide maximum; the model's choices are the limit.
Running several at once
Each press of Generate starts an independent generation. Up to 20 can be in flight at the same time per account; the button shows (n/20) and refuses the 21st until one finishes. Change the prompt or settings between presses to explore variants side by side.
Where results go
All outputs of one run appear together in the results strip and in the project's library, numbered by result index, and share one prompt and one charge.
Frequently asked
Why do I see only three ratio tiles?
Because the model accepts only those. LUVI hides tiles the provider would reject.
Why is there no ratio control at all?
Audio and avatar models have no frame; and a few models set size through a resolution parameter instead, which is in the parameters panel.
Can I run more than one video at a time?
Yes — press Generate again with new settings. Up to 20 generations run in parallel per account; the counter next to the button shows how many are active.