BulkImagen runs 16 image models from 6 labs on one credit balance — 1 to 20 credits per image, and no provider API keys of your own. Compare what each one costs and supports, then send a whole prompt list through it.
GPT Image 2 is where most batches here start: it works the brief out before it draws, and it can hand back a transparent background.
Cheapest 4KSeedream 5.0 Lite renders 4K for 5 credits an image, the lowest 4K rate here. 7 of the 16 models offer a 4K tier.
Most reference imagesSeedream 5.0 Flash accepts up to 10 reference images in one call — the highest cap on the platform — when a batch has to match an existing look.
Start from the job, not the model name. Each card lists the models that do that job best here, with the price you would pay per image.
Headlines, packaging and signs that have to be spelled right, in Chinese as well as English.
Skin, light and materials that pass for a photograph, for product shots and lifestyle scenes.
Attach a stack of reference images so every row of the batch keeps the same face, product or style.
Stickers, icons and product cut-outs that come back with a real alpha channel, ready to drop on any background.
The lowest price per image, for when you want hundreds of drafts to choose from.
The least expensive ways to get a 4K image, for posters, print and anything that gets cropped.
These numbers are read from the generation registry, so they are what a batch actually charges. Credits are billed per finished image, at the rate for the resolution you pick.
Aspect-ratio counts leave out the automatic option some models offer. Reference-image limits apply per call. If an image ends up failing, its credits go back to your balance.
Models from the same lab share a look. Here is what each family is known for, and how the models inside it differ.
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