Black Forest LabsAPI cost

FLUX 3 Image Klein API Cost

A 1.5K FLUX 3 Image Klein image costs $0.005, against $0.011 at the official price. What you spend depends on image size, how many images you make and how many you keep — here is what real work costs, what a monthly budget buys and how to spend less.

1.5K image: $0.005; official $0.011
1,000 images: $1.07; 768
1,000 images / month: $4.25; 1.5K
Below official: up to 87%; failed runs: $0

Create with FLUX 3 Image Klein Get API key API docs

Try it

Try FLUX 3 Image Klein — the price is on the button

Runs on your balance at the price on the button; failed runs are refunded. Results are saved to your account.

Open the full-screen Studio

Calculator

Calculate your FLUX 3 Image Klein cost

Pick the size, your monthly volume and how many tries you keep. Every figure is a live quote.

Size

Images you keep per month 100

Tries per keeper

Per month · 100 generations

0.11

~~$0.80~~ at the official price

Per image: 0.002
Per kept image: 0.002
Saved per month: $0.69
Saved per year: $8.33

Live prices · failed generations are free

Cost drivers

What drives the FLUX 3 Image Klein API cost

3 things set your bill. Prices are live; the full tier list is on the FLUX 3 Image Klein API pricing page.

Image size

The biggest lever. An image costs 32.2× as much at 4K as at 768.

768: $0.002; 1.0×
1K: $0.002; 1.8×
1.5K: $0.005; 4.0×
2K: $0.008; 6.9×
4K: $0.035; 32.2×

Task

Text to image and image edit cost the same: the input doesn't change the rate.

Takes you keep

Every successful image is billed, including takes you discard. Keeping one in three makes each kept 1.5K image cost $0.013 instead of $0.005. Failed generations are refunded.

Real work

What images cost with FLUX 3 Image Klein

Typical jobs priced end to end at today's per-image prices.

FLUX 3 Image Klein cost of common deliverables
Deliverable	Generations	Tier	Official	CheaperGen
Concept exploration	20 images	768	~~$0.16~~	$0.022 With a monthly plan: Pro $0.02Max $0.019
Product photo set	12 images	1.5K	~~$0.13~~	$0.051 With a monthly plan: Pro $0.048Max $0.045
Ad creative variations	50 images	1.5K	~~$0.55~~	$0.22 With a monthly plan: Pro $0.20Max $0.19
Background replacements	500 edits	Edit 1K	~~$4.50~~	$4.25
Blog illustrations for a month	100 images	1.5K	~~$1.10~~	$0.43 With a monthly plan: Pro $0.40Max $0.38
Catalog of 1,000 products × 3 shots	3,000 images	768	~~$24.00~~	$3.19 With a monthly plan: Pro $2.99Max $2.79
Hero images	4 images	4K	~~$0.14~~	$0.14

Monthly plans lower prices on most models (shown under each price); you can still pay as you go. Pro $499/month · Max $4,999/month.

Budgets

What a FLUX 3 Image Klein budget buys

Images per budget at each size.

FLUX 3 Image Klein: output per budget
Size	$10	$50	$100	$500	$1,000
768 $0.002 per image	9,416	47,080	94,161	470,809	941,619
1K $0.002 per image	5,291	26,455	52,910	264,550	529,100
1.5K $0.005 per image	2,354	11,770	23,540	117,702	235,404
2K $0.008 per image	1,365	6,829	13,659	68,296	136,593
4K $0.035 per image	292	1,461	2,923	14,619	29,239

Yearly difference

FLUX 3 Image Klein cost vs the official price

The same monthly volume at 1.5K, priced here and at the official price (verified October 18, 2026).

1,000 images / month

$4.25

~~$11.00~~ official

$81.02 less a year

10,000 images / month

$42.48

~~$110.00~~ official

$810.24 less a year

100,000 images / month

$424.80

~~$1,100~~ official

$8,102 less a year

Compare

A 1.5K image on other models

The same request on FLUX models and the cheapest similar models, at each model's lowest price for that size.

Cost of the same request on FLUX 3 Image Klein and other models
Model	Tier	Cost	vs. FLUX 3 Image Klein
FLUX 3 Image Klein Black Forest Labs	1.5K	$0.005	—
FLUX 3 FLUX family	1.5K	$0.065	+1416%
MOSS Image OpenMOSS	1.5K	$0.083	+1844%

Price is one input; quality, speed and features differ. Each model's cost page has its own breakdown.

Cost control

Keep FLUX 3 Image Klein spend predictable

The same rules in the API, the Playground and the Studio. Details in the billing docs.

Price it first. POST /v1/quote/bfl/flux-3-image-klein/text-to-image returns the exact price of any request, free.
Cap a request. Send max_cost_usd and a request priced above it is refused without charge.
Prepaid only. You can't spend more than your balance; auto top-up is optional and you set its amount.
Failed = free. Failed generations, and jobs you cancel while queued, are refunded in full.
Every charge itemized. Each generation returns its exact cost, and the dashboard lists every charge.

FAQ

FLUX 3 Image Klein API cost questions

FLUX 3 Image Klein API Pricing

FLUX 3 Image Klein API Pricing Per Image

Cheapest FLUX 3 Image Klein API

A 1.5K image costs $0.005 (official $0.011). Prices run from $0.0011 to $0.0342 per image depending on size, with no subscription needed and no minimum spend.

It depends only on usage. 1,000 images a month cost $4.25; 10,000 images a month cost $42.48; 100,000 images a month cost $424.80 (at 1.5K). At the middle volume that is $810.24 a year less than at the official price.

Image size and task. The quote endpoint (POST /v1/quote/{endpoint}) prices any request for free before you run it. Rates by size: price per image.

You pay for every successful generation, including takes you decide not to use. Failed generations, and jobs you cancel while they are queued, are refunded in full automatically. To spend less per try, see Cheapest FLUX 3 Image Klein.

Yes. Credits are prepaid, so you can't spend more than your balance. Pass max_cost_usd with a request and it is refused, without charge, if its price would be higher. Auto top-up is optional.

Our prices are live; official prices were verified October 18, 2026. FLUX 3 Image Klein is Black Forest Labs' open-weights model. CheaperGen provides API access to the open weights, run on GPU inference for open-source models, and does not own the model. Trademarks belong to their respective owners.