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 15, 2026
Latest indexed: Sep 17, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

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838 open issues indexed

RuntimeError: torch.cat(): expected a non-empty list of Tensors Open

bug stale

huggingface/diffusers#8826 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
variable (per frame) IP Adapter weights in video Open

consider-for-modular-diffusers low-priority stale

huggingface/diffusers#8843 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Error in train_cm_ct_unconditional.py (Even after new commit) Open

stale

huggingface/diffusers#8894 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Getting problems saving text_encoder_ti when using train_dreambooth_lora_sd15_advanced Open

bug stale

huggingface/diffusers#8909 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Bugs in PixArtImageProcessor.resize_and_crop_tensor Open

bug stale

huggingface/diffusers#8911 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
train_dreambooth_sd3.py still broken Open

bug stale

huggingface/diffusers#8918 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
StableDiffusionXLControlNetImg2ImgPipeline often fails to respect "pose" control images Open

bug stale

huggingface/diffusers#8930 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Merge pipelines and/or checkpoints Open

stale

huggingface/diffusers#8977 · 19 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Sequential offloading bug with Stable Audio Open

bug stale

huggingface/diffusers#8989 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
error in using EDMDPMSolverMultistepScheduler in kolors model Open

stale

huggingface/diffusers#8997 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Ability to select the strength of the safety_checker Open

stale

huggingface/diffusers#9003 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Black output in DPMSolverSinglestepScheduler with 3 order Open

bug stale

huggingface/diffusers#9007 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
SD3ControlNetModel.from_transformer load weights error Open

bug stale

huggingface/diffusers#9012 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
how to disable safty_checker in FlaxStableDiffusionPipeline Open

bug stale

huggingface/diffusers#9031 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
how to get the minimun working example of FlaxStableDiffusionPipeline in google colab with tpu runtime Open

bug stale

huggingface/diffusers#9032 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
OSError: stabilityai/stable-diffusion-xl-base-1.0 does not appear to have a file named diffusion_pytorch_model.bin. Open

bug stale

huggingface/diffusers#9044 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
The density_for_timestep_sampling and loss_weighting for SD3 Training！！！ Open

stale

huggingface/diffusers#9056 · 17 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
SD3 inpaint pipeline can not use EulerA scheduler. bug: The `scale_model_input` function should be called before `step` to ensure correct denoising. Open

bug stale

huggingface/diffusers#9084 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
PNDMScheduler Inference Timesteps Bug => Repeated Inference Timestep Open

bug stale

huggingface/diffusers#9090 · 2 comments · 2 reactions · 1 assignee · Indexed Sep 17, 2026
InstructPix2Pix training script for SD3 Open

stale

huggingface/diffusers#9101 · 22 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
No Attributte: when i run pixart-alpha with time_step=1, error occured. Open

bug stale

huggingface/diffusers#9106 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
can't resume training with quantized base model Open

bug stale

huggingface/diffusers#9108 · 45 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
'BitDiffusion' object has no attribute 'scheduler' Open

bug stale

huggingface/diffusers#9111 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
IP adapter output on some resolutions suffers in quality? Open

bug stale

huggingface/diffusers#9136 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
train_dreambooth_lora_flux.py distributed bugs Open

bug stale

huggingface/diffusers#9161 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Unexpected behavior of `image_processor.apply_overlay` Open

bug stale

huggingface/diffusers#9166 · 12 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
why rebuild a vae in inference stage? Open

stale

huggingface/diffusers#9172 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Pipeline has no attribute '_execution_device' Open

bug stale

huggingface/diffusers#9180 · 38 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
Differential Diffusion with ControlNet pipeline Open

stale

huggingface/diffusers#9186 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
Flux Inference memory optimisation by pre-computing modulation parameters ahead of time Open

stale

huggingface/diffusers#9197 · 3 comments · 2 reactions · 0 assignees · Indexed Sep 17, 2026
Can we pass output_attentions=True to DiT model such as pixart to get attention output? Open

stale

huggingface/diffusers#9205 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
ValueError: --image_column' value 'image' needs to be one of: text Open

bug

huggingface/diffusers#9210 · 26 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
I made a pipeline that lets you use any number of models at once Open

stale

huggingface/diffusers#9216 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Problem running train_dreambooth_lora_flux.py with model "black-forest-labs/FLUX.1-dev" Open

bug stale

huggingface/diffusers#9227 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Incomplete Lora support for Flux Dev from SimpleTuner Open

bug stale

huggingface/diffusers#9270 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
How can I manually update some of their checkpoints of UNet2/3DConditionModel objects? Open

stale

huggingface/diffusers#9276 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Support dynamic LoRA loading with `torch.compile` model Open

wip

huggingface/diffusers#9279 · 37 comments · 6 reactions · 0 assignees · Indexed Sep 17, 2026
Implementing training-free RB-Modulation pipeline for most used models Open

consider-for-modular-diffusers wip

huggingface/diffusers#9283 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 17, 2026
[Add] VEnhancer - the interpolation and upscaler for CogVideoX-5b Open

stale

huggingface/diffusers#9303 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 17, 2026
Finetuned models aren't saved or loaded properly in train_custom_diffusion.py Open

bug

huggingface/diffusers#9320 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Unload lora specific lora weight Open

lora stale

huggingface/diffusers#9325 · 22 comments · 0 reactions · 2 assignees · Indexed Sep 17, 2026
[Pipeline] AnimateDiff + SparseControl + ControlNet Open

community-examples consider-for-modular-diffusers contributions-welcome good first issue

huggingface/diffusers#9329 · 17 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
StableDiffusionPipeline.from_pretrained() fails to load specified models, resulting in identical weights Open

bug stale

huggingface/diffusers#9332 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
FLUX error when loading with low_cpu_mem_usage=False and ignore_mismatched_sizes=True Open

bug stale

huggingface/diffusers#9343 · 16 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Text generation? Open

wip

huggingface/diffusers#9352 · 13 comments · 0 reactions · 1 assignee · Indexed Sep 17, 2026
pipeline_stable_diffusion_xl_adapter Open

bug stale

huggingface/diffusers#9356 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
Redundant reinitialization of text encoders in train_dreambooth_lora_flux Open

bug stale

huggingface/diffusers#9358 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
IndexError: index 29 is out of bounds for dimension 0 with size 29 Open

bug stale

huggingface/diffusers#9362 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
FlaxStableDiffusionImg2ImgPipeline should delete prepare_inputs and provide prepare_text_inputs and prepare_image_inputs Open

stale

huggingface/diffusers#9371 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026
[Scheduler] Add SNR shift following SD3, would the rest of the code need to be modified? Open

stale

huggingface/diffusers#9392 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 17, 2026

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