ComfyUI's get_filename_list('diffusion_models') filters by supported_pt_extensions which excludes .gguf, so GGUF files never appeared in the dropdown. Also, comfy.utils.load_torch_file routes .gguf to torch.load which fails.
- modules/external_loader.py: _load_gguf_state_dict() parses GGUF via the gguf package (GGUFReader + dequantize, writable copy for torch); _load_weight_state_dict() dispatches by extension; both TTS and ASR load branches route through it
- nodes/external_loader_node.py: list_external_model_files() merges diffusion_models list with .gguf files scanned from the same folders plus the ComfyUI-GGUF unet_gguf folder; resolve_weight_path() falls back diffusion_models -> unet_gguf
- README: GGUF support note + v2.2.1 changelog
Tests: new tests/test_gguf_loading.py (19 tests, real GGUF round-trip). Full suite: 706 passed, 5 pre-existing failures, 4 skipped.
WildAi
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