FLUX.2 [klein] 9B

Name: FLUX.2 [klein] 9B
Author: Black Forest Labs

imageflux-1-dev-non-commercial

Balanced 9B FLUX.2 flow model with 8B text embedder; sub-second inference at ~24 GB VRAM. Open base weights under FLUX non-commercial license.

Capabilities

Show unsupported (15)

Infrastructure

Fine-tuning

Model IDflux-2-klein-9b

Creatorblack-forest-labs

Licenseflux-1-dev-non-commercial

Statusactive

Typeimage

Input modalitiestext, image

Output modalitiesimage

Open weightYes

Parameters—

Architecture—

Max resolution—

Resolutions—

Aspect ratios—

Batch size—

Release date2026-01-15

Sourceofficial

/v1/flux-2-klein-9bPOST

https://api.bfl.ai/v1/flux-2-klein-9b

From $0.015/image + $0.002/MP.

Model	Caps	Max resolution	Resolutions	Aspect ratios	Batch size
FLUX.2 [dev]	F	—	—	—	—
FLUX.2 [flex]	—	—	—	—	—
FLUX.2 [klein] 4B	F	—	—	—	—
FLUX.2 [klein] 9B Preview	F	—	—	—	—
FLUX.2 [klein] 9B	F	—	—	—	—
FLUX.2 [max]	—	—	—	—	—
FLUX.2 [pro] Preview	—	—	—	—	—
FLUX.2 [pro]	—	—	—	—	—

GET/v1/models/black-forest-labs/flux-2-klein-9b