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.

local/flux-3-klein-base-nvfp4

Local

FLUX 3 Image Klein is Black Forest Labs' 5.6B open-weights image model (released 2026-10-15) covering text-to-image, editing with up to ten reference images and bounding-box layout control in one model, with a Qwen3-VL-4B-Instruct text encoder and output up to 4K. This entry runs the undistilled base checkpoint (50 steps at CFG 3.5) in NVFP4 precision. Released under the FLUX Kommunity License (non-commercial, with a commercial-output exception for small companies).

Maker: Black Forest Labs
Family: FLUX 3
Model Size: 5.6B
high
Cost: local run; no API price
not_applicable
Run Target: gx10/flux3-klein-base-nvfp4
Effective Request: response_format: b64_json · size: 1024x1024 · seed: 7 · num_inference_steps: 50 · guidance_scale: 3.5
Sources: black-forest-labs/flux-3-image-klein-base model card FLUX 3 (Black Forest Labs)black-forest-labs/flux-3-image-klein (GitHub)