Stable Diffusion 3 & FLUX: Complete Guide to MMDiT Architecture
From U-Net to Transformer. A deep dive into MMDiT architecture treating text and image equally, plus Rectified Flow and Guidance Distillation.

Stable Diffusion 3 & FLUX: Complete Guide to MMDiT Architecture
From U-Net to Transformer. A new paradigm treating Text and Image equally.
TL;DR
- MMDiT (Multimodal DiT): Processes text and image jointly in a single Transformer
- Rectified Flow Adoption: Straight-line paths instead of DDPM for faster generation
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