Comparison6 min readSeptember 13, 2026

ImagineArt 1.5 vs ImagineArt 1.5 Pro: 2K at 6 Credits or Native 4K at 12

A spec-by-spec comparison of ImagineArt 1.5 and ImagineArt 1.5 Pro on VdoBloom: exact output dimensions, aspect ratios, credit costs and which one to pick for print, web and social.

ImagineArt 1.5 and ImagineArt 1.5 Pro are the same model family pinned to two different fixed output sizes: 1.5 always renders at 2K and costs 6 credits per image, and 1.5 Pro always renders natively at 4K and costs 12 credits per image. There is no resolution dropdown on either one β€” the model you pick is the resolution. So the whole decision reduces to a single question: does this image need to survive being printed, cropped hard, or blown up on a large screen? If yes, pay the extra 6 credits. If it is going onto a website, a feed post or a slide, 1.5 at 2K is already more pixels than the destination will ever show.

Side-by-side specs

Both models are text-to-image only on VdoBloom. Neither accepts a reference image upload, and neither exposes a quality or step-count control. The only setting you choose is aspect ratio, and that selection determines the exact pixel dimensions below.

SpecImagineArt 1.5ImagineArt 1.5 Pro
Credits per image612
Cost at 1 credit = $0.05$0.30$0.60
Output tier2K (fixed)4K (fixed)
1:1 square2048 Γ— 20484096 Γ— 4096
16:9 landscape2560 Γ— 14405120 Γ— 2880
9:16 vertical1440 Γ— 25602880 Γ— 5120
4:3 / 3:42304 Γ— 1728 / 1728 Γ— 23044448 Γ— 3328 / 3328 Γ— 4448
3:2 / 2:32496 Γ— 1664 / 1664 Γ— 24964608 Γ— 3072 / 3072 Γ— 4608
3:1 / 1:3 panorama2472 Γ— 824 / 824 Γ— 24726592 Γ— 2200 / 2200 Γ— 6592
21:9 cinematicNot available5760 Γ— 2472
Aspect ratios total910
Reference image inputNoNo

What native 4K actually buys you

The word that matters in ImagineArt 1.5 Pro’s description is native. Pro is not running a 2K generation through an upscaler β€” it is composing at 4096 Γ— 4096, so the extra pixels carry real detail rather than interpolated smoothness. On a square image that is 4.2 megapixels versus 16.8 megapixels, a straight 4Γ— increase in information. On 16:9 it is 3.7MP versus 14.7MP.

Where that shows up in practice is small-scale content: the weave in a fabric, individual strands of hair, the serif detail on lettering inside the scene, the grain in a wood surface. At 2K those details are present but soft under magnification. At 4K they hold up when you crop to a quarter of the frame and still fill a screen.

Where it does not show up is anywhere the image is displayed at 1200px wide. A 2K file already gets downsampled on a website, an Instagram post, a YouTube thumbnail or a Google Slides deck. Paying 12 credits for a file that the browser immediately shrinks is 6 credits of headroom you never see.

The 21:9 exception

There is one case where the choice is made for you. ImagineArt 1.5 offers nine aspect ratios; 1.5 Pro offers the same nine plus 21:9 cinematic at 5760 Γ— 2472. If you want a true ultrawide frame from this family, Pro is the only route. Note that both models cover 3:1 and 1:3 ultra-panorama, so if you want a wide banner rather than a cinema-shaped frame specifically, 1.5 handles it at 2472 Γ— 824 for half the credits.

What 12 credits versus 6 credits means on a plan

Every new VdoBloom account starts with 10 free credits and no card. That is exactly one ImagineArt 1.5 image with 4 credits left over, or not quite one 1.5 Pro image β€” worth knowing before you spend your trial. The math from there:

PlanCreditsImagineArt 1.5 imagesImagineArt 1.5 Pro images
Free signup1010
Credit pack, $2.4975 (never expire)126
Lite, $15/month3005025
Lite billed annually, $10/month30050 (about $0.20 each)25 (about $0.40 each)

Paid plans also download watermark-free with commercial rights, which is the part that matters if these images are going into client work or a product listing. Full tiers are on the pricing page.

How to prompt either model well

Neither version takes a reference image, so the prompt carries all of the direction. What works reliably with this family:

  • Lead with the subject and the material. Hyper-realism is what this family is tuned for, so name surfaces explicitly: brushed aluminium, matte ceramic, wet asphalt, raw linen.
  • Specify the light before the mood. Say soft north-facing window light or hard low-angle sun rather than dramatic or moody, which the model interprets as heavy colour grading.
  • Put on-image text in quotes. Both versions render typography well for their tier. Write the exact string you want and say where it sits in the frame.
  • Do not ask for resolution in the prompt. Words like 8K or ultra HD do nothing here, because the output size is fixed by the model you selected. They only dilute the description.
  • Match the aspect ratio to the composition you asked for. Requesting a tall portrait scene while set to 16:9 forces the model to invent filler on both sides.

A worked example

Say you need a hero image of a leather weekender bag on a stone bench for a product page, plus the same shot as a 24-inch print for a trade stand. Generate the page version first with ImagineArt 1.5 at 3:2, which gives 2496 Γ— 1664 for 6 credits β€” already well above what the page will serve. Iterate the prompt there, three or four passes at 6 credits each, until the composition and the light are right. Only then re-run the finished prompt on ImagineArt 1.5 Pro at 3:2 for 12 credits to get 4608 Γ— 3072 for the print. Total spend: roughly 30 credits rather than 60, because you did your exploration on the cheap model and paid the 4K premium exactly once.

When to pick a different model entirely

ImagineArt has no reference-image mode, so any job that starts from a photo you already own belongs in image editing on a model that accepts uploads. If your priority is dense, accurate on-image text rather than photographic texture, compare the roster on our best AI image model for text in images guide. And if 6 credits is still more than you want to spend per attempt, VdoBloom carries cheaper text-to-image options β€” the free AI image generator page walks through what the 10 starter credits stretch to. All of these sit under one credit balance, which is the point of a multi-model image generator: switching costs you nothing but the per-image credits.

Ready to try both? Open image generation, pick ImagineArt 1.5 from the model list, and run the same prompt on Pro once you like the result.

Frequently asked questions

Can I set ImagineArt 1.5 Pro to output 2K instead of 4K?

No. Pro renders natively at 4K only, with no resolution control in the interface. If you want 2K from this family, select ImagineArt 1.5, which is the 2K model at 6 credits.

Does ImagineArt 1.5 Pro cost more than double 1.5?

No, exactly double: 6 credits versus 12 credits per image, which is $0.30 versus $0.60 at the Lite rate of 1 credit = $0.05.

Can either model edit a photo I upload?

Neither ImagineArt 1.5 nor 1.5 Pro accepts a reference or source image on VdoBloom. Both are text-to-image only. Use the image editing tab with a model that supports image input for that.

Which aspect ratios does only Pro support?

21:9 cinematic, at 5760 Γ— 2472. Every other ratio β€” 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 3:1 and 1:3 β€” exists on both models.

Do my generated images carry a watermark?

Downloads on any paid plan are watermark-free and come with commercial rights. Free-tier output carries a watermark.

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