Convert-to-Quant (ctq) is installed for normal quantizations. For quantizations and conversions, try: - hf_to_nvfp4_gguf (Hugging Face to GGUF) - gguf_to_nvfp4_gguf (GGUF to GGUF) - safetensors_to_nvfp4_gguf (ComfyUI safetensors to GGUF) - hf_to_nvfp4_safetensors (Hugging Face to ComfyUI safetensors) - hf_to_nvfp4_hf (Hugging Face to NVFP4 Hugging Face) - gguf_to_nvfp4_hf (GGUF to NVFP4 Hugging Face) Depending on the source material. hf cli command is also installed, eg you can: hf download coder3101/gemma-4-12B-it-heretic --local-dir gemma-4-12B-it-heretic hf_to_nvfp4_gguf -o gemma-4-12B-it-heretic_nvfp4 gemma-4-12B-it-heretic The same directory can be quantized to NVFP4 Hugging Face format: hf_to_nvfp4_hf -o gemma-4-12B-it-heretic-NVFP4-HF gemma-4-12B-it-heretic Or to one ComfyUI NVFP4 safetensors file: hf_to_nvfp4_safetensors -o gemma-4-12B-it-heretic-NVFP4.safetensors gemma-4-12B-it-heretic A GGUF file can also be converted to NVFP4 Hugging Face format: gguf_to_nvfp4_hf -o gemma-4-12B-it-heretic-NVFP4-HF gemma-4-12B-it-heretic.gguf