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
- res_multistep allocates and discards a full-size noise tensor every step (eta is always 0)
- MiniMax H3 video VAE decode: access violation with pinned memory / async offload on RTX 5070 Ti (Blackwell, WDDM, cu130)
- LTX models detected as FLUX type ignore FP16 flags and force torch.float32 upcast
- 1 core keeps running at 100% CPU after workflow completion
- LTXAV memory estimate differs by ~128x between video-only and nested AV latents, causing PCIe thrashing
- Complete system freeze (no dump, requires hard power cycle) when running FireRed → MiniMax H3 sequence with dual NVIDIA GPU system
- LoRA-patched FP8 weights are not run-to-run deterministic under dynamic VRAM (comfy_aimdo)
- ci: make unit and execution tests able to fail a PR
- ci: remove desktop release dispatch (no listener, archived target)
- Queue front option in dropdown
- Docs
- Python not yet supported