huggingface/diffusers

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🤗 Diffusers: State-of-the-art diffusion models for image, video, and audio generation in PyTorch.

Stars: 34.5k
Forks: 7.3k
Open beginner issues: 22
Indexed issues: 838
Avg merge: 3d 3h
Merged PRs (30d): 91

Dominant language: Python
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 17, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

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838 issues indexed so far

Wan I2V expand_timesteps: why hard-clamp only first frame (no last-frame clamp)? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

huggingface/diffusers#13167 · Opened Feb 20, 2026
GGUF + `torch.compile` is not compatible with Hub Kernels Open

gguf torch-compile

huggingface/diffusers#13151 · 1 assignee · Opened Feb 16, 2026
Add Nvidia NitroGen to huggingface diffusers Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#13086 · 1 comment · Opened Feb 6, 2026
FLUX.2-klein: CUDA OOM when running in for loop with different image Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

huggingface/diffusers#13079 · 4 comments · Opened Feb 4, 2026
ZImageControlNet.from_transformer creates a shallow copy of the transformer weights Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

huggingface/diffusers#13077 · Opened Feb 4, 2026
Distributed gather crashes on PyTorch < 2.6 Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

huggingface/diffusers#13074 · Opened Feb 3, 2026
Add JiT: Just image Transformer (JiT) for Pixel-space Diffusion Open

contributions-welcome New pipeline/model

huggingface/diffusers#13070 · 4 comments · 3 reactions · 1 assignee · Opened Feb 3, 2026
Qwen-Image controlnet inpaint + controlnet canny Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

huggingface/diffusers#13065 · 1 comment · Opened Feb 2, 2026
Do not support onnxruntime-windowsml Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 20/100

huggingface/diffusers#13062 · Opened Feb 2, 2026
[Feature] Support Unipic 3.0 Pipeline Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#13053 · 1 comment · Opened Jan 29, 2026
[Bug] `no kernel image is available for execution on the device` when using sage_hub attention backend on RTX 5090 (Blackwell, sm_120) Open

bug

huggingface/diffusers#13043 · 6 comments · 1 assignee · Opened Jan 28, 2026
allow cpu-only support for "diffusers" ? Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

huggingface/diffusers#13032 · 1 comment · Opened Jan 26, 2026
Question about VAE_IMAGE_SIZE and CONDITION_IMAGE_SIZE constants in pipeline_qwenimage_edit_plus.py Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

huggingface/diffusers#13009 · Opened Jan 21, 2026
Support for Multi-Image Input LoRA Training Pipeline for FLUX.2-Klein (e.g., Style Transfer and Multi-Subject Composition) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#13008 · 2 comments · 2 reactions · Opened Jan 21, 2026
Shape mismatch when loading a Flux2.Klein GGUF Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

huggingface/diffusers#13001 · 4 comments · 2 reactions · Opened Jan 19, 2026
Why does calculate_dimensions in qwen-image-edit require image height/width to be multiples of 32? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

huggingface/diffusers#12997 · 1 reaction · Opened Jan 19, 2026
[optimization] help us know which kernels we should integrate in Diffusers Open

performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#12990 · 13 comments · 1 reaction · Opened Jan 17, 2026
how Flux.2 Klein support both T2I and TI2I Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

huggingface/diffusers#12989 · 2 comments · Opened Jan 16, 2026
Please create a Huggingface Diffusers SKILL for Claude and a PLUGIN for Claude Code. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#12935 · 4 comments · Opened Jan 9, 2026
Is Lumina2Pipeline's mu calculation correct? Open

bug stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

huggingface/diffusers#12913 · 2 comments · Opened Jan 5, 2026
[Feature Request] Add Implement of 'Kuramoto Orientation Diffusion' Open

stale

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#12903 · 1 comment · Opened Dec 30, 2025
Training script of z-image controlnet? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#12899 · 3 comments · Opened Dec 29, 2025
StableDiffusion3Pipeline crashes with AttributeError: 'NoneType' object has no attribute 'ndim' when using num_images_per_prompt with batched prompts Open

stale

Difficulty 3/5 1-2 days Newbie friendliness 48/100

huggingface/diffusers#12895 · 2 comments · Opened Dec 27, 2025
Is that a bug of prompt2prompt pipeline with replace word pormpt? Open

bug stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

huggingface/diffusers#12881 · 1 comment · Opened Dec 23, 2025
Please create a Diffusers SKILL for Claude and a Diffusers Plugin for Claude Code Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#12864 · 1 comment · 2 reactions · Opened Dec 20, 2025
load_lora_weights(), unload_lora_weights these doesn't work with LongCatImagePipeline. Open

stale

Difficulty 4/5 3-5 days Newbie friendliness 30/100

huggingface/diffusers#12859 · 3 comments · Opened Dec 18, 2025
[Z-Image] ONNX export fails due to pad_sequence / unbind / dynamic-shape ops in ZImageTransformer2DModel (request for export-friendly path) Open

bug stale

Difficulty 5/5 Over a week Newbie friendliness 32/100

huggingface/diffusers#12843 · 1 comment · Opened Dec 15, 2025
Merge Loras for FLUX Open

stale

Difficulty 5/5 Over a week Newbie friendliness 30/100

huggingface/diffusers#12838 · 1 comment · Opened Dec 14, 2025
train_controlnet Open

stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

huggingface/diffusers#12821 · 1 comment · Opened Dec 11, 2025
Sage Attention sm90 causes confetti/noisy output Open

bug

huggingface/diffusers#12783 · 3 comments · 1 assignee · Opened Dec 3, 2025
DPMSolverMultistepScheduler out-of-bounds error when using beta_schedule="squaredcos_cap_v2" + use_karras_sigmas=True Open

bug stale

Difficulty 4/5 3-5 days Newbie friendliness 38/100

huggingface/diffusers#12771 · 4 comments · Opened Dec 2, 2025
`StateManager`, `Hook`, `State`: missing context setting (cond or uncond) in pipelines Open

contributions-welcome stale

Difficulty 4/5 3-5 days Newbie friendliness 38/100

huggingface/diffusers#12760 · 4 comments · Opened Dec 1, 2025
Flux 2: The shape of the latent argument is undocumented Open

stale

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

huggingface/diffusers#12755 · 2 comments · Opened Nov 30, 2025
`from_pipe` converts pipelines to float32 by default Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

huggingface/diffusers#12754 · 13 comments · Opened Nov 30, 2025
Z-Image img2img and inpainting pipeline Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

huggingface/diffusers#12752 · 9 comments · 5 reactions · Opened Nov 29, 2025
torch.compile + channels_last support for Wan 2.2 (T2V / I2V) fails with RuntimeError + Dynamo Unsupported behavior Open

bug stale

Difficulty 4/5 3-5 days Newbie friendliness 38/100

huggingface/diffusers#12728 · 9 comments · Opened Nov 27, 2025
How to run qwen-image in kaggle gpu T4 * 2 successfully? Open

stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

huggingface/diffusers#12722 · 2 comments · Opened Nov 26, 2025
how to use quantization and device_map=balance to run qwen-image on kaggle T4 * 2 Open

stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

huggingface/diffusers#12719 · 3 comments · Opened Nov 26, 2025
Meituan Longcat Video Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

huggingface/diffusers#12709 · 6 comments · Opened Nov 24, 2025
Flux1-Dev inference with single file ComfyUI/SD-Forge Safetensors Open

stale wan

Difficulty 3/5 1-2 days Newbie friendliness 45/100

huggingface/diffusers#12669 · 14 comments · Opened Nov 16, 2025
Complex numbers in Qwen/Z-Image Image pipeline incompatible with torch.compile Open

bug stale

Difficulty 4/5 3-5 days Newbie friendliness 28/100

huggingface/diffusers#12668 · 11 comments · Opened Nov 15, 2025
Any Wan version crashes Open

bug stale

Difficulty 4/5 3-5 days Newbie friendliness 30/100

huggingface/diffusers#12667 · 14 comments · Opened Nov 15, 2025
[Bug] Positional Embedding Index Out-of-Bounds in AuraFlow Open

bug stale

Difficulty 3/5 1-2 days Newbie friendliness 42/100

huggingface/diffusers#12656 · 8 comments · Opened Nov 14, 2025
Question about the `# Copied from` system Open

stale

Difficulty 5/5 Over a week Newbie friendliness 25/100

huggingface/diffusers#12650 · 11 comments · Opened Nov 13, 2025
【 EasyAnimate 】 pipine_ easyanimate_inpaint.Py, line 1191: image_1atents used without assigning a value, causing the program to crash Open

bug stale

Difficulty 3/5 1-2 days Newbie friendliness 48/100

huggingface/diffusers#12646 · 3 comments · Opened Nov 13, 2025
Why Qwen-Image inference speed may slower than comfyui Open

bug stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

huggingface/diffusers#12645 · 17 comments · Opened Nov 13, 2025
Potential incorrect indentation for logging in train_dreambooth.py Open

stale

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

huggingface/diffusers#12641 · 1 comment · Opened Nov 12, 2025
The Diffusers MVP 🚀 Open

diffusers-mvp

huggingface/diffusers#12635 · 21 comments · 40 reactions · 3 assignees · Opened Nov 11, 2025
DDIMScheduler.step() logic mismatches set_timesteps() list when using timestep_spacing='linspace' Open

bug stale

Difficulty 3/5 1-2 days Newbie friendliness 45/100

huggingface/diffusers#12633 · 1 comment · Opened Nov 11, 2025
AttributeError: 'GPT2Model' object has no attribute '_get_initial_cache_position' in AudioLDM2Pipeline Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

huggingface/diffusers#12630 · 3 comments · Opened Nov 11, 2025

huggingface/diffusers

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