diff --git a/opensora/utils/ckpt_utils.py b/opensora/utils/ckpt_utils.py
index 27adfba..3fdf8b7 100644
--- a/opensora/utils/ckpt_utils.py
+++ b/opensora/utils/ckpt_utils.py
@@ -24,6 +24,9 @@ pretrained_models = {
     "PixArt-XL-2-SAM-256x256.pth": "https://huggingface.co/PixArt-alpha/PixArt-alpha/resolve/main/PixArt-XL-2-SAM-256x256.pth",
     "PixArt-XL-2-512x512.pth": "https://huggingface.co/PixArt-alpha/PixArt-alpha/resolve/main/PixArt-XL-2-512x512.pth",
     "PixArt-XL-2-1024-MS.pth": "https://huggingface.co/PixArt-alpha/PixArt-alpha/resolve/main/PixArt-XL-2-1024-MS.pth",
+    "OpenSora-v1-16x256x256.pth": "https://huggingface.co/hpcai-tech/Open-Sora/resolve/main/OpenSora-v1-16x256x256.pth",
+    "OpenSora-v1-HQ-16x256x256.pth": "https://huggingface.co/hpcai-tech/Open-Sora/resolve/main/OpenSora-v1-HQ-16x256x256.pth",
+    "OpenSora-v1-HQ-16x512x512.pth": "https://huggingface.co/hpcai-tech/Open-Sora/resolve/main/OpenSora-v1-HQ-16x512x512.pth",
 }