Image modelNo status listed

FLUX.2 Klein 9B

Black Forest Labs

Released: January 2026
Data date: August 15, 2026

Category view

Position within the category

This overview uses only published data from matching cohorts. Missing values never change a rank.

This position gives equal weight to 4 fixed Gradually image tests. One archived first output contributes for each model and task.

Position: Rank 24 of 28
Index score: 35.2 / 100
Coverage: 4 / 4

Leaderboard

1MAI-Image-2.5 Flash76.6 / 100

2GPT Image 271 / 100

3MAI-Image-2.567.6 / 100

23Grok Imagine Image Quality37.7 / 100

24FLUX.2 Klein 9B35.2 / 100

25Seedream 4.029.9 / 100

28Stable Diffusion 3.5 Large2.5 / 100

Source: Gradually-Bildtest

Measurements

Comparable benchmark results

Each chart contains exactly one source, one measurement series, and one stored comparison cohort. Bars show the position. The measured value appears on the right.

Text to Image Arena

1,144 Elo · Rank 25 of 25

Sample: 9,077 · Data date: August 26, 2026

1.GPT Image 21,371 Elo

23.HiDream-O1-Image1,175 Elo

24.HunyuanImage 3.0 Instruct1,150 Elo

25.FLUX.2 Klein 9B1,144 Elo

4 of 25 model versions shown in this chart. A higher value ranks first.

Source: Artificial AnalysisParticipants: 25

Image Editing Arena

1,166 Elo · Rank 17 of 19

Sample: 11,256 · Data date: August 26, 2026

1.Reve 2.11,263 Elo

15.Seedream 4.01,185 Elo

16.FLUX.2 Pro1,170 Elo

17.FLUX.2 Klein 9B1,166 Elo

18.Qwen Image 2.0 Pro1,164 Elo

19.FLUX.2 Flex1,162 Elo

6 of 19 model versions shown in this chart. A higher value ranks first.

Source: Artificial AnalysisParticipants: 19

WISE Verified overall

44% · Rank 3 of 4

Sample: 1,000 · Data date: August 26, 2026

1.Nano Banana Pro87.6%

2.GPT Image 1.582.5%

3.FLUX.2 Klein 9B44%

4.Stable Diffusion 3.5 Large40.4%

4 of 4 model versions shown in this chart. A higher value ranks first.

1,000 knowledge and realism tasks. Binary item judgments are averaged by category, and the overall score follows the published weighting.

Source: WISE VerifiedParticipants: 4

WISE culture

49% · Rank 3 of 4

Data date: August 26, 2026

1.Nano Banana Pro89.75%

2.GPT Image 1.589%

3.FLUX.2 Klein 9B49%

3.Stable Diffusion 3.5 Large49%

4 of 4 model versions shown in this chart. A higher value ranks first.

1,000 knowledge and realism tasks. Binary item judgments are averaged by category, and the overall score follows the published weighting.

Source: WISE VerifiedParticipants: 4

WISE time

39.17% · Rank 4 of 4

Data date: August 26, 2026

1.Nano Banana Pro81.67%

2.GPT Image 1.569.17%

3.Stable Diffusion 3.5 Large40.83%

4.FLUX.2 Klein 9B39.17%

4 of 4 model versions shown in this chart. A higher value ranks first.

1,000 knowledge and realism tasks. Binary item judgments are averaged by category, and the overall score follows the published weighting.

Source: WISE VerifiedParticipants: 4

WISE space

55% · Rank 3 of 4

Data date: August 26, 2026

1.Nano Banana Pro93.33%

2.GPT Image 1.588.33%

3.FLUX.2 Klein 9B55%

4.Stable Diffusion 3.5 Large44.17%

4 of 4 model versions shown in this chart. A higher value ranks first.

1,000 knowledge and realism tasks. Binary item judgments are averaged by category, and the overall score follows the published weighting.

Source: WISE VerifiedParticipants: 4

WISE biology

38.33% · Rank 3 of 4

Data date: August 26, 2026

1.Nano Banana Pro81.67%

2.GPT Image 1.580%

3.FLUX.2 Klein 9B38.33%

4.Stable Diffusion 3.5 Large30%

4 of 4 model versions shown in this chart. A higher value ranks first.

1,000 knowledge and realism tasks. Binary item judgments are averaged by category, and the overall score follows the published weighting.

Source: WISE VerifiedParticipants: 4

WISE physics

48.33% · Rank 3 of 4

Data date: August 26, 2026

1.Nano Banana Pro86.67%

2.GPT Image 1.575.83%

3.FLUX.2 Klein 9B48.33%

4.Stable Diffusion 3.5 Large37.5%

4 of 4 model versions shown in this chart. A higher value ranks first.

1,000 knowledge and realism tasks. Binary item judgments are averaged by category, and the overall score follows the published weighting.

Source: WISE VerifiedParticipants: 4

WISE chemistry

22.5% · Rank 3 of 4

Data date: August 26, 2026

1.Nano Banana Pro87.5%

2.GPT Image 1.577.5%

3.FLUX.2 Klein 9B22.5%

4.Stable Diffusion 3.5 Large20.83%

4 of 4 model versions shown in this chart. A higher value ranks first.

1,000 knowledge and realism tasks. Binary item judgments are averaged by category, and the overall score follows the published weighting.

Source: WISE VerifiedParticipants: 4

Gradually sample test: Typography and layout

9.9 rank points · Rank 25 of 28

Sample: 1 · Data date: August 18, 2026

1.MAI-Image-2.593.8 rank points

23.Seedream 4.018.5 rank points

24.Wan 2.6 Text to Image14.8 rank points

25.FLUX.2 Klein 9B9.9 rank points

26.HiDream-O1-Image6.2 rank points

26.Midjourney V8.16.2 rank points

28.Stable Diffusion 3.5 Large0 rank points

7 of 28 model versions shown in this chart. A higher value ranks first.

One archived, unfiltered first output per model. All 28 images are ranked in three model-blind orderings. The 0-100 value normalizes the mean rank. This remains an n = 1 sample, and an automated judge may have visual preferences of its own.

Source: Gradually-BildtestParticipants: 28

Gradually sample test: Product photography

75.3 rank points · Rank 8 of 28

Sample: 1 · Data date: August 18, 2026

1.GPT Image 295.1 rank points

5.Nano Banana 2 Lite81.5 rank points

7.HunyuanImage 3.0 Instruct76.6 rank points

8.FLUX.2 Klein 9B75.3 rank points

9.Seedream 5.0 Pro74.1 rank points

10.Krea 2 Medium Turbo70.4 rank points

28.Stable Diffusion 3.5 Large3.7 rank points

7 of 28 model versions shown in this chart. A higher value ranks first.

Source: Gradually-BildtestParticipants: 28

Gradually sample test: Character and detail

43.2 rank points · Rank 16 of 28

Sample: 1 · Data date: August 18, 2026

1.MAI-Image-2.5 Flash86.4 rank points

13.Seedream 5.0 Pro58 rank points

15.HunyuanImage 3.0 Instruct56.8 rank points

16.FLUX.2 Klein 9B43.2 rank points

16.Midjourney V8.143.2 rank points

18.FLUX.2 Flex39.5 rank points

28.Stable Diffusion 3.5 Large3.7 rank points

7 of 28 model versions shown in this chart. A higher value ranks first.

Source: Gradually-BildtestParticipants: 28

Gradually sample test: Infographic

12.3 rank points · Rank 24 of 28

Sample: 1 · Data date: August 18, 2026

1.Reve 2.197.5 rank points

22.FLUX.2 Pro24.7 rank points

23.Grok Imagine Image Quality21 rank points

24.FLUX.2 Klein 9B12.3 rank points

25.Midjourney V8.111.1 rank points

26.HiDream-O1-Image9.9 rank points

28.Firefly Image Model 51.2 rank points

7 of 28 model versions shown in this chart. A higher value ranks first.

Source: Gradually-BildtestParticipants: 28

Profile

Specifications and access

Published information about this model. Unknown values are not estimated.

Weights: Open weightsSource
Access: API, LocalSource
Parameters: 9BSource
Maximum output: 4 megapixelsSource
Benchmark configuration: 9BSource

Pricing

Published prices

Prices remain tied to their documented unit and source.

Representative price: $0.02 per imageSource
fal.ai (fal-ai/flux-2/klein/9b): $0.01 per image (estimated)Source

Measurements

Other published benchmarks

The stored dataset does not contain an exactly matching comparison cohort for these values.

LMArena Text to Image: 3D modeling

1,078.4 points

Rank 54 · 13,814 samples · Retrieved August 26, 2026

LMArena

LMArena Text to Image: Art

1,078.84 points

Rank 53 · 19,055 samples · Retrieved August 26, 2026

LMArena

LMArena Text to Image: Cartoon

1,063.97 points

Rank 55 · 53,034 samples · Retrieved August 26, 2026

LMArena

LMArena Text to Image: Commercial design

1,069.65 points

Rank 56 · 55,183 samples · Retrieved August 26, 2026

LMArena

LMArena Text to Image: Overall

1,069.52 points

Rank 55 · 142,762 samples · Retrieved August 26, 2026

LMArena

LMArena Text to Image: Photorealism

1,090.12 points

Rank 54 · 60,335 samples · Retrieved August 26, 2026

LMArena

LMArena Text to Image: Portraits

1,092.06 points

Rank 55 · 32,758 samples · Retrieved August 26, 2026

LMArena

LMArena Text to Image: Text rendering

1,057.36 points

Rank 56 · 51,643 samples · Retrieved August 26, 2026

LMArena

LMArena Image Editing: Multi-image editing

1,212.54 points

Rank 25 · 147,846 samples · Retrieved August 26, 2026

LMArena

LMArena Image Editing: Overall

1,224.4 points

Rank 37 · 507,321 samples · Retrieved August 26, 2026

LMArena

Head-to-head comparisons

Compare this model

Each matchup compares this model with exactly one other model from the same category.

FLUX.2 Klein 9B vs. GPT Image 2

FLUX.2 Klein 9B vs. Reve 2.1

FLUX.2 Klein 9B vs. Nano Banana 2

FLUX.2 Klein 9B vs. GPT Image 1.5

FLUX.2 Klein 9B vs. MAI-Image-2.5

FLUX.2 Klein 9B vs. Nano Banana Pro

FLUX.2 Klein 9B vs. Nano Banana 2 Lite

FLUX.2 Klein 9B vs. Seedream 5.0 Pro

FLUX.2 Klein 9B vs. Grok Imagine Image Quality

FLUX.2 Klein 9B vs. FLUX.2 Max

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

FLUX.2 Klein 9B vs. MAI-Image-2.5 Flash

FLUX.2 Klein 9B vs. HiDream-O1-Image-1.5

FLUX.2 Klein 9B vs. Krea 2 Medium Turbo

FLUX.2 Klein 9B vs. Seedream 4.0

FLUX.2 Klein 9B vs. Krea 2 Large

FLUX.2 Klein 9B vs. Luma UNI 1 Max

FLUX.2 Klein 9B vs. FLUX.2 Flex

FLUX.2 Klein 9B vs. Recraft V4.1 Utility

FLUX.2 Klein 9B vs. Ideogram 4.0

FLUX.2 Klein 9B vs. Wan 2.6 Text to Image

FLUX.2 Klein 9B vs. FLUX.2 Pro

FLUX.2 Klein 9B vs. HunyuanImage 3.0 Instruct

FLUX.2 Klein 9B vs. HiDream-O1-Image

FLUX.2 Klein 9B vs. Firefly Image Model 5

FLUX.2 Klein 9B vs. Midjourney V8.1

FLUX.2 Klein 9B vs. Stable Diffusion 3.5 Large

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Evidence

Primary sources and data date

Every statement links to its underlying documentation or leaderboard.

Black Forest LabsSource
Image pricingSource
fal.aiSource
Artificial Analysis (retrieved August 26, 2026)Source
LMArena (retrieved August 26, 2026)Source
LMArena (retrieved August 26, 2026)Source
WISE Verified (retrieved August 26, 2026)Source
Gradually-Bildtest (retrieved August 18, 2026)Source