Black Forest Labs·FLUX

FLUX.2 [klein] 4B

A sub-second generation and editing model for consumer GPUs.

CurrentImage generationMultimodalOpen weights

MODEL NUMBER144

Specifications

Only published specifications are shown.

Total parameters

Architecture

Hybrid

Input modalities

Text · Image

Output modalities

Image

Open weights

Yes

License

Apache-2.0

Status

Current

A sub-second generation and editing model for consumer GPUs.

PreviousFLUX.2 [dev]32B · — ctx

CurrentFLUX.2 [klein] 4B4B · — ctx

New capabilities Fast action Local inference

Fast actionLocal inferenceImage editing

2026-01-15Open weights

FLUX.2 klein 4B was released.

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