language:

• en pipeline_tag: text-to-image library_name: onnx base_model:
• amd/FLUX.2-klein-4B-amdnpu
• ponpoke/flux2-klein-4b-uncensored-text-encoder tags:
• flux
• flux2
• image-to-image
• RyzenAI
• ONNX
• quantization
• NPU

FLUX.2 [klein] 4B Abliterated on AMD AI PC NPU

This is a modified version of AMD's FLUX.2 [klein] 4B NPU model, with its Qwen3-4B text encoder replaced by the abliterated text encoder from ponpoke.

The replacement text encoder is exported to ONNX and quantized to 4-bit MatMulNBits (block size 128, asymmetric), retaining the original AMD text encoder's input/output interface. The AMD-optimized transformer and VAE decoder are unchanged.

Model Details

The directory layout follows the original AMD model:

scheduler/
text_encoder/
tokenizer/
transformer/
vae_decoder/

• Text encoder: Abliterated Qwen3-4B, INT4 ONNX, running through DirectML/CPU.
• Transformer and VAE decoder: Original AMD NPU-optimized models.
• Prompt embeddings: FP16, [batch, 256, 7680].
• Inference: FLUX.2 [klein] 4B distilled, 4 steps.

Intended Use

Use with AMD GenAI-SD (sd-sandbox) and Ryzen AI 1.8.0:

python .\test\run.py --model_id "amd/FLUX.2-klein-4B-amdnpu" --model_path "PATH_TO_THIS_MODEL" --prompt "A photorealistic red apple on a wooden table" -n 4 -W 1024 -H 1024 --seed 42

Credits and License

• Black Forest Labs — FLUX.2 [klein] 4B
• AMD — FLUX.2 [klein] 4B AMD NPU
• ponpoke — Abliterated text encoder

See the respective upstream repositories for applicable licenses and redistribution terms, especially those of the modified text encoder. This is an unofficial derivative and is not endorsed by AMD or Black Forest Labs.