Lakonik Goes Pixel-Native with AsymFLUX.2-klein-9B Adapter
AsymFLUX.2-klein-9B is an adapter that lets the FLUX.2 klein Base 9B model create images in raw pixel space, bypassing the usual VAE (decoder) step. It uses an asymmetric flow method to model color directly, improving detail and variety. Three adapter variants are now available along with a ComfyUI extension for local generation.
Lakonik built this adapter and released it as part of the ComfyUI-piFlow custom nodes. The underlying technique comes from Stanford University’s research on Asymmetric Flow Models. It’s made for users who want high-quality, privacy-friendly image generation on their own hardware.
Pixel-space generation with three adapter options
Key Features
- Pixel-space generation without a separate VAE.
- Three adapters: raw, SFT Z-Image, SFT FLUX.2.
- Base adapter delivers diverse, highly realistic output.
- SFT versions improve hand and text consistency.
- Works locally with FLUX.2 klein Base 9B.
- ComfyUI drag‑and‑drop workflow nodes.
This release is ideal for local AI enthusiasts and small studios who want photorealistic results on consumer GPUs. Privacy-minded professionals can experiment without uploading prompts to the cloud. Users who enjoy prompt fine‑tuning will get the most out of the sensitive yet creative base adapter.
Developer notes and known limitations
The base adapter is extremely sensitive to wording and sampling settings, so standard prompts may not produce the expected style. Editing features are not yet available, and the underlying model still struggles with anatomy and text. The developer is actively working on distilled few‑step versions and plans to restore editing capabilities in future updates.
“AsymFLUX.2 (especially the base adapter) is very sensitive to prompt wording / sampling settings, and the styles are very different and unique.” — Source: Reddit
Project Links
