FLUX Outpainting costs 12 credits per run on VdoBloom — $0.60 at the Lite plan rate of $0.05 per credit, or about $0.29 per run on an annual Pro plan — and that price is flat no matter how much canvas you add. Expanding an image by 64 pixels on one edge bills exactly the same as pushing all four edges out by the maximum 512 pixels. That single fact should change how you use the model: every expansion you can foresee belongs in one job, not spread across four.

What you are paying for

FLUX Outpainting is Black Forest Labs’ canvas-expansion model, running on VdoBloom through Runware as the model id bfl:flux@outpainting. It takes one source image and four numbers — how many pixels to add at the top, right, bottom and left — and paints plausible new image into the space it created. It is not a prompt-driven model. There is no text box that steers the result; the extension is inferred entirely from the pixels you gave it. At least one of the four directions has to be greater than zero or the job is rejected before it bills anything.

Each side accepts 0 to 512 pixels, and the default is 64 on every side if you leave the controls alone. Maxing all four gives you an extra 1,024 pixels of width and 1,024 of height around the original frame in a single 12-credit run. The model takes exactly one input image, rates 4.2 with VdoBloom users, and carries the platform’s MODERATE content label. Full specs are on the FLUX Outpainting model page.

12 credits in dollars, at every plan rate

Plan	Price	Credits included	Cost per credit	Cost per outpaint run	Runs included
Free account	$0, no card	10 credits, once	—	—	0 — the signup bonus is 2 credits short
Lite, monthly	$15 / month	300 / month	$0.0500	$0.60	25 per month
Lite, annual	$120 / year ($10 / month)	3,600 / year	$0.0333	$0.40	300 per year
Pro 800, monthly	$29 / month	800 / month	$0.0363	$0.44	66 per month
Pro 2,000, monthly	$59 / month	2,000 / month	$0.0295	$0.35	166 per month
Pro 2,000, annual	$588 / year ($49 / month)	24,000 / year	$0.0245	$0.29	2,000 per year

Two lines in that table deserve a second look. The first is the free row: new accounts get 10 credits with no card, and FLUX Outpainting costs 12, so it is one of the few models on the platform you cannot try on the signup bonus alone. Cheaper editors like Nano Banana Edit at 5 credits or P-Image-Edit at 6 will run on it; this one will not. The second is the annual Pro row — at $0.29 a run, an outpaint costs less than half what the same job costs on a monthly Lite plan. Plan lines are listed on the pricing page.

One-time credit packs start at $2.49 for 75 credits and never expire, which covers six outpaint runs with 3 credits to spare. For occasional canvas work — a handful of banner reformats a few times a year — that is usually the honest recommendation over a subscription.

The flat fee changes the workflow

Because the 12 credits do not scale with pixels added, the cost of an expansion is entirely a function of how many times you press the button. Consider the same finished job costed two ways.

Approach	Runs	Credits	Cost at Lite rate	Result
One job, 512 px on all four sides	1	12	$0.60	+1,024 px width and height, single coherent pass
One side at a time, 512 px each	4	48	$2.40	Same dimensions, four separate inferences
Timid 64 px nudges to the same size	8 per axis pair	96	$4.80	Same dimensions, compounding drift

The cheapest version is also usually the best-looking one. Every additional pass feeds the model its own generated pixels as the new source, and small errors in texture, lighting and perspective compound with each round. Decide the final canvas first, enter all four numbers, run once.

When you need more than 512 pixels on a side, you have no choice but to chain runs, and the price is linear: 24 credits for two passes, 36 for three. That is the point at which it is worth asking whether generating the image at the target aspect ratio from the start would be cheaper. A fresh Flux Kontext Pro generation at 21:9 costs 7 credits — less than a single outpaint — and you can compare its terms on the Flux Kontext Pro page.

How it prices against the other canvas and cleanup tools

Model	Credits	Cost at Lite rate	Inputs	Job it does
FLUX Outpainting	12	$0.60	1 image, no prompt	Extend the canvas up to 512 px per side
FLUX Erase	10	$0.50	Source + mask image	Remove what the white mask covers
Flux Kontext Pro	7	$0.35	1 image + instruction	Change one element, preserve the rest
P-Image-Edit	6	$0.30	Up to 10 images	Fast general-purpose editing
Nano Banana Edit	5	$0.25	Up to 10 images	Cheapest reference-image editing
Nano Banana 2	15	$0.75	Up to 14 images	Native extreme ratios at 1K/2K/4K, no outpainting needed

That last row is the genuine alternative to buying an outpaint at all. If you are expanding an image purely to hit a banner or skyscraper format and you still have the ability to regenerate from scratch, a model that renders those ratios natively skips the whole problem. Outpainting earns its 12 credits when the source is fixed — a photograph, a client-supplied asset, a frame you cannot recreate. Extending a photo of a real person is fine, but you still need that person’s consent before you publish work built from their likeness.

Spending less on outpainting

Measure the target canvas before you start. Work out the exact pixel deltas for the format you need, enter all four, run once. Guessing costs 12 credits a guess.
Do not outpaint what you can crop. Going from 16:9 to 1:1 is a free crop, not a 12-credit expansion. Outpainting is only for adding.
Upscale after, not before. Expanding a smaller image and then upscaling the result costs less total inference than expanding an already-huge frame, and the per-side 512 limit goes further on a smaller source.
Check the seam at full zoom before the second pass. If run one produced a soft edge, chaining a second run onto it bakes the softness in permanently.

Failed runs and refunds

Credits are deducted before the job goes to the provider and automatically refunded if it fails or the provider rejects it, so an error does not cost you the 12 credits. A run that completes and simply looks wrong does bill, which is the whole case for planning the expansion rather than iterating into it. Start a job from the image editor, where FLUX Outpainting sits in the model dropdown alongside the rest of the edit roster; the editor tool page walks through the wider workflow.

Frequently asked questions

How much does FLUX Outpainting cost per image?

Twelve credits per run — $0.60 at the Lite plan rate of $0.05 per credit, down to roughly $0.29 per run on an annual Pro 2,000 plan.

Does expanding all four sides cost more than one side?

No. The 12-credit charge is flat regardless of direction count or pixel amount, so a 512-pixel expansion on all four sides bills the same as a 64-pixel nudge on one.

Can I try FLUX Outpainting on the free signup credits?

Not on the bonus alone. New accounts get 10 credits and this model costs 12, so you need either a plan or a credit pack. Cheaper editors at 5 to 7 credits do run on the signup bonus.

How far can one run expand an image?

Up to 512 pixels per side, which is up to 1,024 extra pixels of width and 1,024 of height in a single job. Beyond that you chain runs at 12 credits each.

Does the prompt affect the price or the result?

Neither. FLUX Outpainting is purely image-driven — any text you type is ignored by the model, and the cost is fixed at 12 credits either way.

Do I get my credits back if the expansion fails?

Yes. Credits are refunded automatically when a generation fails or is rejected by the provider. Completed runs bill even if you dislike the output.

FLUX Outpainting Pricing: 12 Credits a Run, Flat No Matter How Much Canvas You Add