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# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
from huggingface_hub import snapshot_download
def download_diffusion_nemo():
"""
Downloads all Cosmos Diffusion NeMo assets to HF_HOME directory.
Make sure to set HF_HOME to your desired path before running this function.
"""
snapshot_download("nvidia/Cosmos-1.0-Guardrail")
snapshot_download("nvidia/Cosmos-1.0-Tokenizer-CV8x8x8")
snapshot_download("nvidia/Cosmos-1.0-Diffusion-7B-Text2World", allow_patterns=["nemo/*"])
snapshot_download("nvidia/Cosmos-1.0-Diffusion-14B-Text2World", allow_patterns=["nemo/*"])
snapshot_download("nvidia/Cosmos-1.0-Prompt-Upsampler-12B-Text2World")
snapshot_download("google-t5/t5-11b", ignore_patterns=["*.h5"])
def main():
# Check if HF_HOME is set
hf_home = os.environ.get("HF_HOME")
if not hf_home:
raise EnvironmentError(
"The HF_HOME environment variable is not set. "
"Please set it to your desired path before running this script."
)
# Download Cosmos Diffusion NeMo checkpoints
download_diffusion_nemo()
if __name__ == "__main__":
main()
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