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Flux.2 Klein 9B API

Text to Image

Lightweight Flux.2 model for fast image generation at $0.0105/MP.

Click or drag & dropPNG, JPG, WEBP, GIF · Max 100MB
Output

Your generated image will appear here

Features

What Flux.2 Klein 9B API offers

About 9B-parameter Flux.2 Klein image model focused on speed
Output resolution presets: 0.6 MP, 1 MP, 2 MP, or 4 MP
Aspect ratios include 21:9 ultrawide plus standard square, portrait, and landscape crops
Optional seed for repeatable generations
Up to 10 reference images per request to guide the render
No Flex-style steps or CFG knobs (lighter surface than full Flux.2 Flex)
JSON REST flow with generate and status endpoints

Use cases

Built for

Primary

Interactive tools - Lower latency previews for UIs that cannot wait on full Flux.2 Max

#2

High-volume thumbnail runs - Pick 0.6 MP or 1 MP when files must stay small

#3

Storyboards - Many frames per minute with consistent aspect_ratio presets

#4

Style probes - Iterate prompts quickly before spending tokens on heavier tiers

#5

Catalog drafts - Placeholder imagery before committing to a slower flagship model

FAQ

About Flux.2 Klein 9B API

It is Black Forest Labs' smaller Flux.2 variant (about 9B parameters) exposed on Unifically with prompt, aspect_ratio, resolution, optional seed, and optional reference images.

Klein 9B uses resolution and aspect_ratio presets plus references. It does not expose Flex-style steps and CFG controls found on the Flux.2 Flex playground.

You can request 0.6mp, 1mp, 2mp, or 4mp output. Larger presets cost more processing time and usage.

Usage maps to the black-forest-labs/flux.2-klein-9b billing key. Review Unifically pricing for the current per-megapixel or per-request rate.