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FLUX.2 Klein 9Bvs.Adobe Firefly Image 4

Which one is better?

In our own test, FLUX.2 Klein 9B leads. Adobe Firefly Image 4 has no arena rating yet. Adobe Firefly Image 4 has no API price.

Same prompt, two images

Same task, the first image of each. The task with the biggest difference is preselected.

FLUX.2 Klein 9B: Product photography, first image from the fixed test run
FLUX.2 Klein 9B72 out of 100
Adobe Firefly Image 4: Product photography, first image from the fixed test run
Adobe Firefly Image 45 out of 100

Result for “Product photography”:FLUX.2 Klein 9B ahead

Prompt given to both modelsCreate a square premium product photograph of a brushed titanium wristwatch standing upright on dark green marble. The watch has a cream dial, thin black hands set to 10:10, twelve distinct hour markers, a realistic crown, and a dark brown leather strap. Soft window light from the left, controlled reflections, shallow depth of field, no text, no logo, no extra objects.

What the rating looks at: Materials, reflections, and fine details.

“Ahead”: better in all three rating rounds. “Slightly ahead”: a higher value, but not in every round.

Test protocol of the images

Both models receive the same archived prompt in exactly one request, and the first result counts. Files are normalized to 1,024 × 1,024 pixels without cropping. Provider resolution, randomness, quality tier and prompt processing can still differ. The images are a practical visual test, not a reconstruction of the arena configuration.

Character and detail

FLUX.2 Klein 9B: fal, requested 1024x1024, n=1, seed=1587849924, estimated cost $0.006291, generated Aug 14, 2026, 1:52 PM. Source

Adobe Firefly Image 4: manual, 1:1, one request, first output, one output observed, exact UI model Firefly Image 4, provider-default random seed, native 2K square output, no reference images, no selected effects, default content settings, source UI file Create a square cinematic full-b 60374 ydr.ffgenimg, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 9:42 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

FLUX.2 Klein 9B image SHA 256: 84eceab680e59de6b9d4e68b3c21f6515ce093ff7d110992049e847570dd565f

Adobe Firefly Image 4 image SHA 256: a0305ed203aa5f66fa5082f78a169737d0cea9fc6d7bdac14eb6c874521a6669

Infographic

FLUX.2 Klein 9B: fal, requested 1024x1024, n=1, seed=1082231541, estimated cost $0.006291, generated Aug 14, 2026, 1:52 PM. Source

Adobe Firefly Image 4: manual, 1:1, one request, first output, one output observed, exact UI model Firefly Image 4, provider-default random seed, native 2K square output, no reference images, no selected effects, default content settings, source UI file Create a square German infograph 211113 2kW.ffgenimg, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 9:42 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

FLUX.2 Klein 9B image SHA 256: 1d2eb263ca5a25794a88df7bb04f5c13e10ed9a289371d1dcc7ed6d6e0a297e2

Adobe Firefly Image 4 image SHA 256: 6a23e56ba8c63ec5461c8a20fabc74aff347088ad49b3cc7aa39eb8088d33c23

Product photography

FLUX.2 Klein 9B: fal, requested 1024x1024, n=1, seed=1388538280, estimated cost $0.006291, generated Aug 14, 2026, 1:39 PM. Source

Adobe Firefly Image 4: manual, 1:1, one request, first output, one output observed, exact UI model Firefly Image 4, provider-default random seed, native 2K square output, no reference images, no selected effects, default content settings, source UI file Create a square premium product 776320 41X.ffgenimg, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 9:42 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

FLUX.2 Klein 9B image SHA 256: e7208f19ccfb9b810b9648cb1861797b7155ad91933d1660059236cef413ebe0

Adobe Firefly Image 4 image SHA 256: 4f93f6c8da78501a95fccc17a8464c95f590799028c4a62ed87d15342e123182

Typography and layout

FLUX.2 Klein 9B: fal, requested 1024x1024, n=1, seed=1340991019, estimated cost $0.006291, generated Aug 14, 2026, 2:41 PM. Source

Adobe Firefly Image 4: manual, 1:1, one request, first output, one output observed, exact UI model Firefly Image 4, provider-default random seed, native 2K square output, no reference images, no selected effects, default content settings, source UI file Create a square editorial poster 565284 h6v.ffgenimg, source 2048x2048, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 9:42 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

FLUX.2 Klein 9B image SHA 256: c5f23870e70f2245d24a3689f2579ceb770e5edf8c3c89b7d6ed7ae138f262f6

Adobe Firefly Image 4 image SHA 256: 97ad71052994f6f16c416e03bb57c37b9e3a7c7be41377ee5f01ebd1fb253de2

The numbers at a glance

Arena ratingfrom votes by users · higher is better
1,070

FLUX.2 Klein 9B

Rank 21 of 22

n/a

Adobe Firefly Image 4

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better
45

FLUX.2 Klein 9B

Rank 50 of 74

17

Adobe Firefly Image 4

Rank 68 of 74

Price per imagedollars through the API · lower is better
$0.015

FLUX.2 Klein 9B

cheap

n/a

Adobe Firefly Image 4

no API price

Ranks among the 22 image models with an arena rating and the 74 with a GraduallyBench run; prices compared with 28 models with an API price.

FLUX.2 Klein 9B

Subscription
n/a No plan in Germany names exactly this model.
Via API
$0.015 per image, 100 images $1.50.
License
Open weights, Weights released under the FLUX Non-Commercial License.

Adobe Firefly Image 4

Subscription
n/a No plan in Germany names exactly this model.
Via API
No API price known. Access: Web app.
Weights
unknown.

Subscriptions only count plans that name exactly this model. Subscription prices include VAT, API prices are in dollars.

Arena rating (LMArena) from Oct 28, 2026 · GraduallyBench from Nov 1, 2026 · API prices from Oct 28, 2026 · Subscription database from Sep 29, 2026 (34 days old)

All data side by side

The better value is bold. For ratings only when the gap is clear.

KennzahlFLUX.2 Klein 9BAdobe Firefly Image 4
Ratings
Arena ratingfrom votes by users, higher is better1,070n/a
Arena rankRank 21 of 22n/a
Arena votesmore votes, a safer rating150,695n/a
GraduallyBenchour own rating, 0 to 1004517
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition2211
Product photographyMaterials, reflections, and fine details725
Character and detailAnatomy, clothing, and spatial consistency5946
InfographicNumbers, labels, and visual organization265
API price
Per imagelower is better$0.015n/a
100 images$1.50n/a
Profile
ReleasedJanuary 2026Apr 24, 2025
Weightsopen means: runs locallyopenWeights released under the FLUX Non-Commercial Licenseunknown
AccessAPI, localWeb app
Parameters9 billionnot published
Largest output4 Megapixelnot consistently published
Plans in Germanynaming exactly this modeln/an/a

API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.

Sources: FLUX.2 Klein 9B model source, status source (verified Sep 24, 2026) · Adobe Firefly Image 4 model source (verified Nov 1, 2026)

Arena ratings by category

From blind votes on LMArena. “Ahead” means the lead is clear.

No shared arena score in the stored snapshot

The stored benchmark database contains no measurement for FLUX.2 Klein 9B and Adobe Firefly Image 4 from the same arena and category. Older model versions are not used as substitutes.

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