Question 1

Do I need a reference image?

Accepted Answer

No. With nothing attached the prompt renders on its own. Attach one to sixteen images and the same prompt runs as an edit against them instead — one composer, both jobs.

Question 2

What do the shape options mean?

Accepted Answer

Auto hands the shape to the model. Square, Portrait 4:3, Portrait 16:9, Landscape 4:3 and Landscape 16:9 set it explicitly, and Square HD renders the square at 2K.

Question 3

How do I get a transparent background?

Accepted Answer

Set Background to Transparent. Alpha only survives in PNG or WebP, so JPEG greys out while it is selected and a draft that was on JPEG renders as PNG rather than refusing.

Question 4

What does Quality change?

Accepted Answer

Low is the default here and the fastest to come back; Medium and High push detail and fine type further; Auto lets the model decide. Nothing else about the request moves.

Question 5

How many images come back per run?

Accepted Answer

One. Each Generate is a single render, so a variation is another run with the prompt you just adjusted.

Question 6

Which file formats can I get?

Accepted Answer

PNG, JPEG or WebP. PNG is the default, and JPEG is unavailable while Background is set to Transparent.

Question 7

Can I mask a region to edit?

Accepted Answer

Not from this panel. Edits are described in words: name the one element that should change and say that everything else — framing, light, grain — stays identical.