Google Imagen4 AI Image Generator

Google Imagen4 is the middle Google option for prompt-first image work when Fast still looks too rough but Ultra is more polish than the brief needs. It fits website hero art, editorial illustrations, branded lifestyle scenes, and campaign concepts that are already heading toward a real design handoff.

On Rivya, Google Imagen4 currently runs as a text-to-image-only option with negative prompt, aspect ratio, and seed controls, and it returns one image per run at a fixed 8-credit tier. That keeps it best for prompt-led image generation where the concept should stand on the written brief itself rather than on a stack of references or an edit project.

The useful first checks are aspect ratio, what the negative prompt is actually excluding, and whether seed consistency matters for iteration. Because the option is text-only and single-image, the real question is whether the prompt can already carry the scene cleanly without leaning on source assets.

At a fixed 8 credits per generation for one stronger prompt-led render, Imagen4 is easiest to justify when the job has moved past rough ideation but does not yet need Ultra-tier polish. It is a good spend when cleaner finish will save reruns, and a worse spend when you are still burning through lots of disposable concepts.

Choose Google Imagen4 when you want a cleaner middle tier between rough first-pass ideation and premium-end polish, especially on prompt-first brand or editorial work. Go lighter when cost-per-try matters most, and step up only when the brief really needs the extra finish of the top Google tier.

This page is best for the initial prompt-first image pass when the concept is already fairly settled and you mainly need to see whether Imagen4 gives you a cleaner render than Fast. It is a good checkpoint for hero art, editorial graphics, and campaign visuals that might actually move toward design handoff.

The public page setup here is text-to-image only, with negative prompt, aspect ratio, and seed controls. Each run is a fixed 8-credit, single-image check, so it is a clean place to test whether the prompt itself is strong enough to carry the scene before you commit to a longer image project.

Before you run it, check the aspect ratio, make sure the negative prompt is only excluding what really matters, and decide whether seed repeatability will help the next round. On Imagen4, those three choices usually matter more than adding more descriptive fluff.

The page is public, but the actual initial prompt-led image run is still gated behind sign in. Public guidance is a fixed 8 credits per generation, so it makes sense to line up the prompt, crop, and seed strategy here first, then sign in when you are ready to spend on the run.

Stay here while you are pressure-testing prompt wording, crop, and the first clean render. Open the full Studio once you want saved variants, broader prompt branching, or a longer asset project around the same image direction.