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Arena / Models / FLUX.2 [klein] 4B
Black Forest Labs logo Black Forest Labs · RELEASED

FLUX.2 [klein] 4B

Arena score
20.1

Text-to-Image

Rank
#49

of 62 ranked

Stars

2.0 of 5

Speed
Fast
Reliability
Fair
Price
$0.0010 / image
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Models

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Arena / Gallery

Standout work

The model at its best across 4 more challenges.

The Reversed Rodeo
Jun 30, 2026
Chalkboard Menu
Jun 30, 2026
Outfit Transfer Challenge
Jun 29, 2026
The Halloween Invitation
May 8, 2026
Arena / Performance

Speed & reliability

Measured across every provider serving this model, last 30 days.

Generation speed
3.9s median
P50 3.9s P95 tail 9.6s
Reliability
90.5% success
excludes user errors
Arena / Skills

Skills

The shape of this model's strengths, and the categories it ranks strongest in.

Skill signature

Where FLUX.2 [klein] 4B earns its score, percentile-shaped across its skills.

Top skills
  1. 1
    Lighting, Shadows & Materials 21.2
    Image Editing
    59%
  2. 2
    Prompt Adherence 20.4
    Text-to-Image
    50%
  3. 3
    Product, Branding & Commercial 19.4
    Text-to-Image
    45%
  4. 4
    Art 19.3
    Text-to-Image
    52%
  5. 5
    Text Rendering 19.2
    Text-to-Image
    45%
Arena / Gallery

By skill

Every challenge FLUX.2 [klein] 4B entered, grouped by the skill it tests and led by its strongest lanes. Scroll a lane to see them all; open a stack to compare its takes.

Lighting, Shadows & Materials
5 challenges · 59% wins
Edited result
Original image
Before After
Image Editing
Edited result
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Edited result
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Image Editing
Image Editing
Image Editing
Edited result
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Image Editing
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Before After
Prompt Adherence
12 challenges · 51% wins
Text-to-Image
Text-to-Image
Image Editing
Image Editing
Image Editing
Text-to-Image
Text-to-Image
Text-to-Image
Text-to-Image
Text-to-Image
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Product, Branding & Commercial
6 challenges · 45% wins
Text-to-Image
Text-to-Image
Text-to-Image
Text-to-Image
Text-to-Image
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Show 14 more skill lanes
Art
2 challenges · 52% wins
Text-to-Image
Text-to-Image
Text Rendering
7 challenges · 45% wins
Text-to-Image
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Aesthetics
14 challenges · 42% wins
Text-to-Image
Text-to-Image
Text-to-Image
Image Editing
Text-to-Image
Text-to-Image
Edited result
Original image
Before After
Image Editing
Edited result
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Before After
Edited result
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Before After
Text-to-Image
Text-to-Image
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Image Editing
Preservation
7 challenges · 55% wins
Edited result
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Before After
Image Editing
Edited result
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Edited result
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Image Editing
Image Editing
Image Editing
Image Editing
Edited result
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Image Editing
Edited result
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Edited result
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Image Editing
Photorealism
12 challenges · 47% wins
Edited result
Original image
Before After
Image Editing
Edited result
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Before After
Edited result
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Before After
Text-to-Image
Text-to-Image
Image Editing
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Image Editing
Text-to-Image
Edited result
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Image Editing
Edited result
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Edited result
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Text-to-Image
Text-to-Image
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Creativity
8 challenges · 36% wins
Text-to-Image
Text-to-Image
Image Editing
Text-to-Image
Text-to-Image
Text-to-Image
Text-to-Image
Image Editing
3D Imaging & Modeling
2 challenges · 75% wins
Text-to-Image
Text-to-Image
People & Poses
2 challenges · 50% wins
Image Editing
Edited result
Original image
Before After
Image Editing
Edited result
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Before After
Edited result
Original image
Before After
Adding & Editing Objects
2 challenges · 57% wins
Image Editing
Image Editing
Face & Identity
2 challenges · 75% wins
Edited result
Original image
Before After
Image Editing
Edited result
Original image
Before After
Edited result
Original image
Before After
Image Editing
Backgrounds & Scenes
1 challenge · 75% wins
Image Editing
Artistic Restyling
2 challenges · 40% wins
Image Editing
Image Editing
Portraits
1 challenge · 0% wins
Text-to-Image
Cartoon, Anime & Fantasy
1 challenge · 0% wins
Text-to-Image
Arena / Head to head

Notable matchups

This model's standout head-to-heads from the arena's blind voting. Open one for the full comparison, or stack it up against any other model.

Head to head

Put FLUX.2 [klein] 4B up against another model.

65 compatible models to stack it up against.

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Models

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Arena / Family 7 models

The flux.2 family

Other models in this lineage. Listed in release order.