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Head-to-head comparison

MAI-Image-2.5 Flash 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
6
shared sample prompts
4
latest arena retrieval
2026-08-26

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 MAI-Image-2.5 Flash and FLUX.2 Klein 9B
AttributeMAI-Image-2.5 FlashFLUX.2 Klein 9B
ProviderMicrosoft AIBlack Forest Labs
ReleasedJune 2026January 2026
AccessAPI, Web appAPI, local
LifecyclePreview in Microsoft Foundry Status sourceNo separate lifecycle notice
WeightsProprietaryOpen weights
ParametersNot published9 billion
Maximum output1,048,576 pixels4 Megapixel
Arena configurationFlash9B
Text-to-image price$20 per 1,000 images$15 per 1,000 images
Editing price$20 per 1,000 images$17 per 1,000 images
Technical sourceModel sourceVerified 2026-08-15Model sourceVerified 2026-08-15
MAI-Image-2.5 FlashFLUX.2 Klein 9B
Text to Image ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
MAI-Image-2.5 Flash$20
FLUX.2 Klein 9BLower price$15
Image Editing ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
MAI-Image-2.5 Flash$20
FLUX.2 Klein 9BLower price$17

Key to the marks:better valuebetter, but not conclusivetie

Prompt adherence and specialist tests

Shared capability benchmarks

Every matchup includes the same four Gradually sample tasks. For each task, one archived first output from every model is 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.

MAI-Image-2.5 FlashFLUX.2 Klein 9B
Gradually sample test: Typography and layoutMean of three blind ranks across all 28 first outputs, n = 1 each
MAI-Image-2.5 FlashHigher blind-rank score45.7 / 100
FLUX.2 Klein 9B9.9 / 100
Gradually sample test: Product photographyMean of three blind ranks across all 28 first outputs, n = 1 each
MAI-Image-2.5 FlashHigher blind-rank score93.8 / 100
FLUX.2 Klein 9B75.3 / 100
Gradually sample test: Character and detailMean of three blind ranks across all 28 first outputs, n = 1 each
MAI-Image-2.5 FlashHigher blind-rank score86.4 / 100
FLUX.2 Klein 9B43.2 / 100
Gradually sample test: InfographicMean of three blind ranks across all 28 first outputs, n = 1 each
MAI-Image-2.5 FlashHigher blind-rank score80.3 / 100
FLUX.2 Klein 9B12.3 / 100

Key to the marks:better valuebetter, but not conclusivetie

Capability benchmark scores for MAI-Image-2.5 Flash and FLUX.2 Klein 9B
BenchmarkMAI-Image-2.5 FlashFLUX.2 Klein 9B
Gradually sample test: Typography and layout
Higher blind-rank score45.7 / 100
Mean rank: 15.67 (14 / 19 / 14)
Five rubric scores
Headline: 1.67 / 2
Subline: 1.67 / 2
Text control: 1.67 / 2
Visual brief: 1.33 / 2
Layout: 1 / 2
9.9 / 100
Mean rank: 25.33 (25 / 26 / 25)
Five rubric scores
Headline: 1.67 / 2
Subline: 0.67 / 2
Text control: 1 / 2
Visual brief: 1.33 / 2
Layout: 1 / 2
Gradually sample test: Product photography
Higher blind-rank score93.8 / 100
Mean rank: 2.67 (2 / 2 / 4)
Five rubric scores
Subject: 1.33 / 2
Time: 1.33 / 2
Watch details: 1.33 / 2
Photography: 1.33 / 2
Exclusions: 1.33 / 2
75.3 / 100
Mean rank: 7.67 (10 / 6 / 7)
Five rubric scores
Subject: 1.33 / 2
Time: 1.33 / 2
Watch details: 1.33 / 2
Photography: 1.33 / 2
Exclusions: 1.33 / 2
Gradually sample test: Character and detail
Higher blind-rank score86.4 / 100
Mean rank: 4.67 (1 / 2 / 11)
Five rubric scores
Scene: 1.33 / 2
Wardrobe: 1.33 / 2
Anatomy: 1.33 / 2
Props: 1.33 / 2
Environment: 1 / 2
43.2 / 100
Mean rank: 16.33 (4 / 25 / 20)
Five rubric scores
Scene: 1.33 / 2
Wardrobe: 1.33 / 2
Anatomy: 1 / 2
Props: 0.33 / 2
Environment: 1 / 2
Gradually sample test: Infographic
Higher blind-rank score80.3 / 100
Mean rank: 6.33 (7 / 7 / 5)
Five rubric scores
Title: 1.67 / 2
Sequence: 1.33 / 2
Labels: 1.67 / 2
Diagram: 1.33 / 2
Clarity: 1.67 / 2
12.3 / 100
Mean rank: 24.67 (25 / 24 / 25)
Five rubric scores
Title: 1.67 / 2
Sequence: 1.33 / 2
Labels: 0.33 / 2
Diagram: 0.33 / 2
Clarity: 0.67 / 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.

2 shared result series
MAI-Image-2.5 FlashFLUX.2 Klein 9B
Text to Image ArenaBlind preference from the same prompt, higher is better
MAI-Image-2.5 FlashHigher score1,229 Elo
FLUX.2 Klein 9B1,144 Elo
Image Editing ArenaBlind preference from the same prompt, higher is better
MAI-Image-2.5 FlashHigher score1,235 Elo
FLUX.2 Klein 9B1,166 Elo

Key to the marks:better valuebetter, but not conclusivetie

Arena benchmark scores for MAI-Image-2.5 Flash and FLUX.2 Klein 9B
BenchmarkMAI-Image-2.5 FlashFLUX.2 Klein 9BSource
Text to Image Arena
Higher score1,229 Elo
Rank 15, 95% confidence interval: ±10, 5,208 ratings
1,144 Elo
Rank 67, 95% confidence interval: ±9, 9,077 ratings
Artificial AnalysisRetrieved 2026-08-26
Image Editing Arena
Higher score1,235 Elo
Rank 11, 95% confidence interval: ±9, 5,157 ratings
1,166 Elo
Rank 34, 95% confidence interval: ±7, 11,256 ratings
Artificial AnalysisRetrieved 2026-08-26

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
MAI-Image-2.5 Flash, Character and detail
MAI-Image-2.5 Flash
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.

MAI-Image-2.5 Flash. Provider Manual import, Official Bing Image Creator web app; MAI-Image-2.5-Flash; one request; 1:1; first result; free guest generation; 2026-08-14; https://www.bing.com/images/create/ai-image-generator, model ID manual export, generated Aug 14, 2026, 4:23 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

MAI-Image-2.5 Flash, image SHA 256: a2637943faf5ae5210c69f645f96c70ea0a1d267c38a64705810947d2ba78dc8

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
MAI-Image-2.5 Flash, Infographic
MAI-Image-2.5 Flash
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.

MAI-Image-2.5 Flash. Provider Manual import, Official Bing Image Creator web app; MAI-Image-2.5-Flash; one request; 1:1; first result; free guest generation; 2026-08-14; https://www.bing.com/images/create/ai-image-generator, model ID manual export, generated Aug 14, 2026, 4:23 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

MAI-Image-2.5 Flash, image SHA 256: 6af00e502934a24a9e535b3f72d9b1ca545a984fc463e785ffe796a700e015b3

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
MAI-Image-2.5 Flash, Product photography
MAI-Image-2.5 Flash
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.

MAI-Image-2.5 Flash. Provider Manual import, Official Bing Image Creator web app; MAI-Image-2.5-Flash; one request; 1:1; first result; free guest generation; 2026-08-14; https://www.bing.com/images/create/ai-image-generator, model ID manual export, generated Aug 14, 2026, 4:23 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

MAI-Image-2.5 Flash, image SHA 256: 9cb652604f7c64d8ebaa4303e924155a1f45581a940045be12775419e635bd8f

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
MAI-Image-2.5 Flash, Typography and layout
MAI-Image-2.5 Flash
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.

MAI-Image-2.5 Flash. Provider Manual import, Official Bing Image Creator web app; MAI-Image-2.5-Flash; one request; 1:1; first result; free guest generation; 2026-08-14; https://www.bing.com/images/create/ai-image-generator, model ID manual export, generated Aug 14, 2026, 4:22 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

MAI-Image-2.5 Flash, image SHA 256: 185a852b71d68ea37a41091b57f3ec02829b2d1e87fd1045939ffa0f8e4c3cf8

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

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