metadata
license: apache-2.0
language:
- en
pipeline_tag: image-to-image
tags:
- text-to-image
- image-editing
- flux
- diffusion-single-file
base_model:
- black-forest-labs/FLUX.2-small-decoder
base_model_relation: quantized
This is a BF16 conversion of black-forest-labs/FLUX.2-small-decoder, converted using diffusers and safetensors. Weights cast from FP32 to BF16; bn statistics preserved as-is.
FLUX.2 Small Decoder is a distilled VAE decoder that serves as a drop-in replacement for the standard FLUX.2 decoder. It delivers faster decoding and lower VRAM usage with minimal to zero quality loss. The encoder remains unchanged.
Both images below have been generated using FLUX.2 Klein NVFP4 with BF16 VAEs.
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| FLUX.2 VAE small | FLUX.2 VAE |
Prompt
A black cat holding a sign that says 'hello world' in typewriter font
Key Features
- ~1.4x faster decoding compared to the full decoder.
- ~1.4x less VRAM at decode time, enabling higher resolutions without running out of memory.
- ~28M decoder parameters (vs ~50M in the full decoder) thanks to narrower channel widths (
[96, 192, 384, 384]vs[128, 256, 512, 512]). - Minimal quality loss — images are almost identical.
- Available under the Apache 2.0 license.
Compatible with all open FLUX.2 models:
License
This model is licensed under the https://www.apache.org/licenses/LICENSE-2.0.

