huggingface/diffusers

[Looking for community contribution] support DiffSynth Controlnet in diffusers

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#12221 opened on Aug 22, 2025

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 (8 comments) (1 reaction) (0 assignees)Python (22,190 stars) (4,562 forks)batch import
Good second issuecontributions-welcomehelp wanted

Description

Model/Pipeline/Scheduler description

Hi! We want to add first party support for DiffSynth controlnet in diffusers, and we are looking for some help from the community!

Let me know if you're interested!

Open source status

  • The model implementation is available.
  • The model weights are available (Only relevant if addition is not a scheduler).

Provide useful links for the implementation

https://huggingface.co/SahilCarterr/Qwen-Image-Blockwise-ControlNet-Canny https://huggingface.co/SahilCarterr/Qwen-Image-Blockwise-ControlNet-Depth

Contributor guide

Tech stack
pythonpytorch
Domain
machine learning
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
PyTorch experiencediffusers API knowledgeunderstanding of ControlNet
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
Start by examining existing ControlNet pipelines in diffusers (e.g., StableDiffusionControlNetPipeline) to understand the pipeline structure and how to register new models. The provided HuggingFace model cards contain example usage and model architecture details. Implement a new pipeline class that wraps the DiffSynth controlnet, ensuring compatibility with diffusers' loading and inference APIs. Issue comments may contain additional guidance from maintainers; review the discussion thread for any specific requirements.