comfyui
https://github.com/comfyanonymous/comfyui
Python
The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface.
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- Issues
- Qwen3-VL Generate Text aborts with "scatter gather kernel index out of bounds" on the second generate() in one node execution
- [Qwen Image 2.1] Hard crash in prefetch/staging-buffer path on Windows multi-GPU (Fatal Python error: Aborted)
- Qwen-Image 2.1: default sampling uses a fixed mu=0.69 for every resolution, so the out-of-the-box schedule no longer matches the model's published dynamic-shift scheduler
- Qwen-Image-2.1 VAE encode is broken on MPS: encode→decode round-trip returns 6.6 dB PSNR (49.1 dB on CPU), silently corrupting every image-edit workflow
- Qwen-Image 2.1: --enable-dynamic-vram silently corrupts output after any model reload (channel slice offset, ROCm gfx1201)
- Qwen-Image-2.1 image edit: VAE reference-latent splice produces broadband noise at exactly resolution=1024 (the node default); 992 and 1056 are clean, reproduces on CPU too
- Support NVFP4 conditioning for Qwen Image 2.1
- Fix default inpainting workflow to preserve unmasked pixels
- README: tell NVIDIA users what to do about "no kernel image is available"
- Fix Qwen Image PEFT LoRA mapping
- Docs
- Python not yet supported