Update api/ltx/ltx_utils.py

api/ltx/ltx_utils.py

@@ -71,10 +71,11 @@ def build_ltx_pipeline_on_cpu(config: Dict) -> Tuple[LTXVideoPipeline, Optional[
     t0 = time.perf_counter()
     logging.info("Building LTX pipeline on CPU...")
 
-    ckpt_path = Path(config["checkpoint_path"])
+    ckpt_path_str = hf_hub_download(repo_id=LTX_REPO_ID, filename=config["checkpoint_path"], cache_dir=CACHE_DIR)
+    ckpt_path = Path(ckpt_path_str)
     if not ckpt_path.is_file():
         raise FileNotFoundError(f"Main checkpoint file not found: {ckpt_path}")
-
+  
     with safe_open(ckpt_path, framework="pt") as f:
         metadata = f.metadata() or {}
         config_str = metadata.get("config", "{}")