ImageBench V1 —

192 evaluations across 6 categories

Benchmark V1 verdicts are produced by VLM judges and can contain mistakes. Treat PASS/FAIL labels as machine-assisted assessments, and inspect the images yourself. Learn more about the methodology.

Generation Details

Source-backed model context, size, cost, and request settings for this ImageBench V1 run.

bfl/flux-2-klein-9b

API

FLUX.2 [klein] 9B is Black Forest Labs' higher-quality small FLUX.2 checkpoint, positioned for a strong quality-to-latency tradeoff across text-to-image, image editing, and reference-guided generation.

Maker: Black Forest Labs
Family: FLUX.2 [klein]
Model Size: 9B
high
Cost: from $0.015 / image
high
Run Target: bfl/flux-2-klein-9b
Effective Request: aspect_ratio: 1:1
Sources: Black Forest Labs FLUX.2 overview FLUX.2-klein-9B model card BFL FLUX.2 pricing Black Forest Labs pricing

55.3

Overall

54%

Capability

57.1

Est. Preference

103

Pass

89

Fail

4.1s

Avg Latency

2.6s

Min Latency

11.6s

Max Latency

All 192 generations

Text Rendering40%

Typography Style67%

Writing accuracy33%

Spatial Reasoning68%

Attributes Binding100%

Compositionality78%

Counting33%

Negation56%

Relative Position75%

Scale & Proportions67%

Human realism29%

Faces & Expressions67%

Full Body8%

Hands0%

Multi-Subject50%

Truthfulness26%

Photorealism33%

Physics & Reflections33%

World Knowledge17%

Professional Studio93%

Camera & Lighting92%

Color Precision100%

Photorealism67%

Graphical design58%

Data Visualisation0%

Layout & Design33%

Style Diversity92%