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Head-to-head comparison

Qwen Image 2.0 Pro vs. FLUX.2 Klein 9B

Compare shared capability tests, arena scores with documented retrieval dates, task-specific image pricing, and verified specifications. Research benchmarks, preference arenas, and our n = 1 samples remain separate.

shared result series
15
shared sample prompts
4
latest arena retrieval
2026-09-22

Change image model selection

Specifications and cost

General specifications and task-specific pricing

A model can have one price for generating new images and another for editing. Prices therefore remain tied to the corresponding arena configuration.

Specifications and pricing for Qwen Image 2.0 Pro and FLUX.2 Klein 9B
AttributeQwen Image 2.0 ProFLUX.2 Klein 9B
ProviderAlibabaBlack Forest Labs
ReleasedApril 2026January 2026
AccessAPIAPI, local
LifecycleNo separate lifecycle noticeWeights released under the FLUX Non-Commercial License Status source
WeightsProprietaryOpen weights
ParametersNot published9 billion
Maximum output2,048 × 2,048 pixels4 Megapixel
Arena configuration2026-04-229B
Text-to-image price$75 per 1,000 images$15 per 1,000 images
Editing price$75 per 1,000 images$17 per 1,000 images
Technical sourceModel sourceVerified 2026-08-15Model sourceVerified 2026-09-24
Qwen Image 2.0 ProFLUX.2 Klein 9B
Text to Image ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
Qwen Image 2.0 Pro$75
FLUX.2 Klein 9BLower price$15
Image Editing ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
Qwen Image 2.0 Pro$75
FLUX.2 Klein 9BLower price$17

Key to the marks:better valuebetter, but not conclusivetie

Prompt adherence and specialist tests

Shared capability benchmarks

Both checkpoints completed the same four Gradually sample tasks. For each task, 30 archived first outputs are ranked in three differently ordered, model-blind passes. The published 0-100 value normalizes the mean rank. It must still be read as an n = 1 sample per model. No exact shared result from the integrated research benchmarks is available for this pair.

Qwen Image 2.0 ProFLUX.2 Klein 9B
Gradually sample test: Typography and layoutMean of three blind ranks across all 30 first outputs, n = 1 each
Qwen Image 2.0 ProHigher blind-rank score40.2 / 100
FLUX.2 Klein 9B10.3 / 100
Gradually sample test: Product photographyMean of three blind ranks across all 30 first outputs, n = 1 each
Qwen Image 2.0 ProHigher blind-rank score57.5 / 100
FLUX.2 Klein 9B43.7 / 100
Gradually sample test: Character and detailMean of three blind ranks across all 30 first outputs, n = 1 each
Qwen Image 2.0 ProHigher blind-rank score48.3 / 100
FLUX.2 Klein 9B28.7 / 100
Gradually sample test: InfographicMean of three blind ranks across all 30 first outputs, n = 1 each
Qwen Image 2.0 ProHigher blind-rank score44.8 / 100
FLUX.2 Klein 9B14.9 / 100

Key to the marks:better valuebetter, but not conclusivetie

Capability benchmark scores for Qwen Image 2.0 Pro and FLUX.2 Klein 9B
BenchmarkQwen Image 2.0 ProFLUX.2 Klein 9B
Gradually sample test: Typography and layout
Higher blind-rank score40.2 / 100
Mean rank: 18.33 (15 / 20 / 20)
Five rubric scores
Headline: 1.67 / 2
Subline: 1.67 / 2
Text control: 1.67 / 2
Visual brief: 1.67 / 2
Layout: 1 / 2
10.3 / 100
Mean rank: 27 (27 / 27 / 27)
Five rubric scores
Headline: 1.67 / 2
Subline: 0.67 / 2
Text control: 1 / 2
Visual brief: 1.67 / 2
Layout: 1 / 2
Gradually sample test: Product photography
Higher blind-rank score57.5 / 100
Mean rank: 13.33 (18 / 6 / 16)
Five rubric scores
Subject: 1.67 / 2
Time: 1.67 / 2
Watch details: 1.33 / 2
Photography: 1.67 / 2
Exclusions: 1.67 / 2
43.7 / 100
Mean rank: 17.33 (13 / 19 / 20)
Five rubric scores
Subject: 1.67 / 2
Time: 1.33 / 2
Watch details: 1.67 / 2
Photography: 1.67 / 2
Exclusions: 1.67 / 2
Gradually sample test: Character and detail
Higher blind-rank score48.3 / 100
Mean rank: 16 (19 / 14 / 15)
Five rubric scores
Scene: 1 / 2
Wardrobe: 1 / 2
Anatomy: 1 / 2
Props: 1 / 2
Environment: 1 / 2
28.7 / 100
Mean rank: 21.67 (22 / 17 / 26)
Five rubric scores
Scene: 1 / 2
Wardrobe: 1 / 2
Anatomy: 1 / 2
Props: 1 / 2
Environment: 1 / 2
Gradually sample test: Infographic
Higher blind-rank score44.8 / 100
Mean rank: 17 (16 / 20 / 15)
Five rubric scores
Title: 1 / 2
Sequence: 1.67 / 2
Labels: 1.67 / 2
Diagram: 1.67 / 2
Clarity: 1 / 2
14.9 / 100
Mean rank: 25.67 (25 / 26 / 26)
Five rubric scores
Title: 1.67 / 2
Sequence: 1 / 2
Labels: 0.33 / 2
Diagram: 0.67 / 2
Clarity: 0.33 / 2

Key to the marks:better valuebetter, but not conclusivetie

Independent preference tests

Shared arena benchmarks

Artificial Analysis and Arena derive scores from blind comparisons. Raters see outputs for the same prompt and choose the image they prefer. Separate series cover text rendering, photorealism, portraits, art, commercial design, and image editing. Confidence intervals indicate how certain a measured lead is.

11 shared result series
Qwen Image 2.0 ProFLUX.2 Klein 9B
Text to Image ArenaBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,030 Elo
FLUX.2 Klein 9B940 Elo
Image Editing ArenaBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProNo clear lead1,016 Elo
FLUX.2 Klein 9B1,014 Elo
LMArena Text to Image: 3D modelingBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,198.919
FLUX.2 Klein 9B1,078.703
LMArena Text to Image: ArtBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,175.631
FLUX.2 Klein 9B1,078.937
LMArena Text to Image: CartoonBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,191.069
FLUX.2 Klein 9B1,064.062
LMArena Text to Image: Commercial designBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,187.349
FLUX.2 Klein 9B1,069.617
LMArena Text to Image: OverallBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,191.159
FLUX.2 Klein 9B1,069.544
LMArena Text to Image: PhotorealismBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,205.655
FLUX.2 Klein 9B1,090.199
LMArena Text to Image: PortraitsBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,215.999
FLUX.2 Klein 9B1,091.959
LMArena Text to Image: Text renderingBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,201.077
FLUX.2 Klein 9B1,057.327
LMArena Image Editing: OverallBlind preference from the same prompt, higher is better
Qwen Image 2.0 ProHigher score1,303.653
FLUX.2 Klein 9B1,224.422

Key to the marks:better valuebetter, but not conclusivetie

Arena benchmark scores for Qwen Image 2.0 Pro and FLUX.2 Klein 9B
BenchmarkQwen Image 2.0 ProFLUX.2 Klein 9BSource
Text to Image Arena
Higher score1,030 Elo
Rank 19, 95% confidence interval: ±9, 5,988 ratings
940 Elo
Rank 75, 95% confidence interval: ±8, 10,360 ratings
Artificial AnalysisRetrieved 2026-09-22
Image Editing Arena
No clear lead1,016 Elo
Rank 31, 95% confidence interval: ±9, 3,572 ratings
1,014 Elo
Rank 32, 95% confidence interval: ±9, 5,177 ratings
Artificial AnalysisRetrieved 2026-09-22
LMArena Text to Image: 3D modeling
Higher score1,198.919
Rank 17, 95% confidence interval: ±16.58, 1,106 ratings
1,078.703
Rank 58, 95% confidence interval: ±6.95, 13,817 ratings
LMArenaRetrieved 2026-09-19
LMArena Text to Image: Art
Higher score1,175.631
Rank 25, 95% confidence interval: ±13.32, 1,743 ratings
1,078.937
Rank 56, 95% confidence interval: ±6.28, 19,040 ratings
LMArenaRetrieved 2026-09-19
LMArena Text to Image: Cartoon
Higher score1,191.069
Rank 19, 95% confidence interval: ±9.16, 4,471 ratings
1,064.062
Rank 58, 95% confidence interval: ±5.02, 52,993 ratings
LMArenaRetrieved 2026-09-19
LMArena Text to Image: Commercial design
Higher score1,187.349
Rank 19, 95% confidence interval: ±8.86, 4,497 ratings
1,069.617
Rank 59, 95% confidence interval: ±4.6, 55,147 ratings
LMArenaRetrieved 2026-09-19
LMArena Text to Image: Overall
Higher score1,191.159
Rank 18, 95% confidence interval: ±6.06, 12,005 ratings
1,069.544
Rank 58, 95% confidence interval: ±3.26, 142,642 ratings
LMArenaRetrieved 2026-09-19
LMArena Text to Image: Photorealism
Higher score1,205.655
Rank 17, 95% confidence interval: ±8.88, 4,846 ratings
1,090.199
Rank 57, 95% confidence interval: ±4.71, 60,271 ratings
LMArenaRetrieved 2026-09-19
LMArena Text to Image: Portraits
Higher score1,215.999
Rank 17, 95% confidence interval: ±11.96, 2,303 ratings
1,091.959
Rank 58, 95% confidence interval: ±5.75, 32,705 ratings
LMArenaRetrieved 2026-09-19
LMArena Text to Image: Text rendering
Higher score1,201.077
Rank 20, 95% confidence interval: ±9.31, 4,044 ratings
1,057.327
Rank 59, 95% confidence interval: ±4.78, 51,597 ratings
LMArenaRetrieved 2026-09-19
LMArena Image Editing: Overall
Higher score1,303.653
Rank 21, 95% confidence interval: ±4.82, 50,820 ratings
1,224.422
Rank 39, 95% confidence interval: ±2.91, 507,078 ratings
LMArenaRetrieved 2026-09-19

Key to the marks:better valuebetter, but not conclusivetie

Visual comparison

Sample images

Our images complement preference data, but do not replace it. The prompt, request count, and selection rule match. Provider resolution, quality tier, randomness, and prompt processing remain visible limitations, so this is not a fully controlled laboratory test.

Largely standardized comparison protocol. Both models receive the same archived prompt, 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. These images are a practical visual test, not a reconstruction of the arena configuration.

Character and detail

Anatomy, clothing, and spatial consistency

FLUX.2 Klein 9B, Character and detail
Qwen Image 2.0 Pro, Character and detail
Qwen Image 2.0 Pro
FLUX.2 Klein 9B
Prompt and settings

Create a square cinematic full-body portrait of a fictional bicycle courier waiting under a transparent umbrella at a rainy tram stop in Hamburg at blue hour. She wears a mustard raincoat, navy trousers, red sneakers, a silver helmet, and carries a teal messenger bag. Keep both hands visible, render the bicycle correctly, use realistic wet-street reflections, and include no readable brand names.

Qwen Image 2.0 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID Qwen/Qwen-Image-2.0-Pro, generated Aug 14, 2026, 12:21 PM. Source
FLUX.2 Klein 9B. Provider fal.ai, requested 1024x1024, n=1, seed=1587849924, estimated cost $0.006291, model ID fal-ai/flux-2/klein/9b, generated Aug 14, 2026, 1:52 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

Qwen Image 2.0 Pro, image SHA 256: 05f19da3e2d0eedb17d098c1b21abf8c83c663afa59083f0ce7a67a948e8a263

Qwen Image 2.0 Pro, request SHA 256: daf42522a323804ef9196abe1efabac816b4b442bec00a91f90b9fdd8d57bae6

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

FLUX.2 Klein 9B, request SHA 256: 5d005ee24926d68b7d2299b8ecbe4e14919f652761f6de2568a043f2a6258da0

Infographic

Numbers, labels, and visual organization

FLUX.2 Klein 9B, Infographic
Qwen Image 2.0 Pro, Infographic
Qwen Image 2.0 Pro
FLUX.2 Klein 9B
Prompt and settings

Create a square German infographic titled SO FUNKTIONIERT PHOTOSYNTHESE. Show exactly four numbered steps in this order: 1 LICHT, 2 WASSER, 3 CO₂, 4 ZUCKER + SAUERSTOFF. Use a clean editorial science style with one plant cross-section, simple arrows, high contrast, legible labels, and no other text.

Qwen Image 2.0 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID Qwen/Qwen-Image-2.0-Pro, generated Aug 14, 2026, 12:22 PM. Source
FLUX.2 Klein 9B. Provider fal.ai, requested 1024x1024, n=1, seed=1082231541, estimated cost $0.006291, model ID fal-ai/flux-2/klein/9b, generated Aug 14, 2026, 1:52 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

Qwen Image 2.0 Pro, image SHA 256: 003fbe859de5df62a4f49e3d590c00f5036e208149d81226d1835871fd1e0410

Qwen Image 2.0 Pro, request SHA 256: 8afcf2a2661e733ceed209087c6253139db63559bce51a1887e280855549ad48

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

FLUX.2 Klein 9B, request SHA 256: 8b8014fc63f520d73ff57d3d8df5eae880097383167d44918b963f2830d09940

Product photography

Materials, reflections, and fine details

FLUX.2 Klein 9B, Product photography
Qwen Image 2.0 Pro, Product photography
Qwen Image 2.0 Pro
FLUX.2 Klein 9B
Prompt and settings

Create 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.

Qwen Image 2.0 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID Qwen/Qwen-Image-2.0-Pro, generated Aug 14, 2026, 12:21 PM. Source
FLUX.2 Klein 9B. Provider fal.ai, requested 1024x1024, n=1, seed=1388538280, estimated cost $0.006291, model ID fal-ai/flux-2/klein/9b, generated Aug 14, 2026, 1:39 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

Qwen Image 2.0 Pro, image SHA 256: b811a440655cae766c039dfc8f9efb1756be5dce63ef22cd95deb1fe7dab6a3a

Qwen Image 2.0 Pro, request SHA 256: e24ea060a669087c82f55e22cc5b361c6b23fb3f61b55d73b67406147d2a570f

FLUX.2 Klein 9B, image SHA 256: e7208f19ccfb9b810b9648cb1861797b7155ad91933d1660059236cef413ebe0

FLUX.2 Klein 9B, request SHA 256: 21e2c14d1b6315c30134e1390f531349608855d4ef1a87527e6d0ba57b2974ca

Typography and layout

Legible text, hierarchy, and composition

FLUX.2 Klein 9B, Typography and layout
Qwen Image 2.0 Pro, Typography and layout
Qwen Image 2.0 Pro
FLUX.2 Klein 9B
Prompt and settings

Create a square editorial poster for an imaginary night train called MONDFALTER. Show the exact German headline MONDFALTER and the exact subline BERLIN NACH LISSABON. Use a restrained midnight-blue and warm-cream palette, one stylized moth, strong Swiss-grid typography, generous negative space, and no additional words or logos.

Qwen Image 2.0 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID Qwen/Qwen-Image-2.0-Pro, generated Aug 14, 2026, 2:00 PM. Source
FLUX.2 Klein 9B. Provider fal.ai, requested 1024x1024, n=1, seed=1340991019, estimated cost $0.006291, model ID fal-ai/flux-2/klein/9b, generated Aug 14, 2026, 2:41 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

Qwen Image 2.0 Pro, image SHA 256: 4eb4915afa71f6a8c76979dcecadd70beabd3869f11ca092a725fd7b6c87b4f2

Qwen Image 2.0 Pro, request SHA 256: dc02f3c7a699f6ddcd1b8a7e82170adae1563e75665d9c3f93965c6a00917ee4

FLUX.2 Klein 9B, image SHA 256: c5f23870e70f2245d24a3689f2579ceb770e5edf8c3c89b7d6ed7ae138f262f6

FLUX.2 Klein 9B, request SHA 256: 530872e813e988ba95025956a3743c6111120af963d90b8970a8bf3eced5547b

How to read this comparison

An Elo score is not a verdict on creativity

A higher arena score means this specific configuration was preferred more often in blind comparisons.

Typography, character consistency, local execution, licensing, and price may matter more to your workload than overall visual appeal.

Prices cover 1,000 images at 1,024 × 1,024 pixels using settings documented by Artificial Analysis. Subscriptions and special rates are excluded.

More matchups

Related image model comparisons

Compare Qwen Image 2.0 Pro and FLUX.2 Klein 9B with other important image models under the same evidence rules. Each page shows only exact shared measurements and samples.

View the complete image model comparison