diff --git a/lightrag/llm/ollama.py b/lightrag/llm/ollama.py
index 28d91075..9c2d17ee 100644
--- a/lightrag/llm/ollama.py
+++ b/lightrag/llm/ollama.py
@@ -1,5 +1,6 @@
 from collections.abc import AsyncIterator
 import os
+import re
 
 import pipmaster as pm
 
@@ -23,10 +24,26 @@ from lightrag.exceptions import (
 from lightrag.api import __api_version__
 
 import numpy as np
-from typing import Union
+from typing import Optional, Union
 from lightrag.utils import logger
 
 
+_OLLAMA_CLOUD_HOST = "https://ollama.com"
+_CLOUD_MODEL_SUFFIX_PATTERN = re.compile(r"(?:-cloud|:cloud)$")
+
+
+def _coerce_host_for_cloud_model(host: Optional[str], model: object) -> Optional[str]:
+    if host:
+        return host
+    try:
+        model_name_str = str(model) if model is not None else ""
+    except Exception:
+        model_name_str = ""
+    if _CLOUD_MODEL_SUFFIX_PATTERN.search(model_name_str):
+        return _OLLAMA_CLOUD_HOST
+    return host
+
+
 @retry(
     stop=stop_after_attempt(3),
     wait=wait_exponential(multiplier=1, min=4, max=10),
@@ -64,15 +81,7 @@ async def _ollama_model_if_cache(
     if api_key:
         headers["Authorization"] = f"Bearer {api_key}"
 
-    # If this is a cloud model (names include '-cloud' or ':cloud'), default
-    # the host to Ollama cloud when no explicit host was provided.
-    try:
-        model_name_str = str(model) if model is not None else ""
-    except Exception:
-        model_name_str = ""
-
-    if host is None and ("-cloud" in model_name_str or ":cloud" in model_name_str):
-        host = "https://ollama.com"
+    host = _coerce_host_for_cloud_model(host, model)
 
     ollama_client = ollama.AsyncClient(host=host, timeout=timeout, headers=headers)
 
@@ -170,14 +179,7 @@ async def ollama_embed(texts: list[str], embed_model, **kwargs) -> np.ndarray:
     host = kwargs.pop("host", None)
     timeout = kwargs.pop("timeout", None)
 
-    # If embed_model targets Ollama cloud, default host when not provided
-    try:
-        embed_model_name = str(embed_model) if embed_model is not None else ""
-    except Exception:
-        embed_model_name = ""
-
-    if host is None and ("-cloud" in embed_model_name or ":cloud" in embed_model_name):
-        host = "https://ollama.com"
+    host = _coerce_host_for_cloud_model(host, embed_model)
 
     ollama_client = ollama.AsyncClient(host=host, timeout=timeout, headers=headers)
     try: