diff --git a/llm4ad/tools/llm/llm_api_https.py b/llm4ad/tools/llm/llm_api_https.py
index 9d1f8db9..98bd3f13 100644
--- a/llm4ad/tools/llm/llm_api_https.py
+++ b/llm4ad/tools/llm/llm_api_https.py
@@ -31,9 +31,11 @@ class HttpsApi(LLM):
     def __init__(self, host, key, model, timeout=60, **kwargs):
         """Https API
         Args:
-            host   : host name. please note that the host name does not include 'https://'
+            host   : host name. please note that the host name does not include 'https://'. 
+                     Note: use "localhost:11434" for ollama's default settings
             key    : API key.
-            model  : LLM model name.
+            model  : LLM model name. 
+                     Note: pass local ollama model in the form like "ollama:deepseek-r1:14b"
             timeout: API timeout.
         """
         super().__init__(**kwargs)
@@ -45,6 +47,47 @@ def __init__(self, host, key, model, timeout=60, **kwargs):
         self._cumulative_error = 0
 
     def draw_sample(self, prompt: str | Any, *args, **kwargs) -> str:
+        if self._model.startswith('ollama:'):
+            return self.local_ollama_draw_sample(prompt)
+        else:
+            return self.remote_draw_sample(prompt)
+    
+    def local_ollama_draw_sample(self, prompt: str | Any, *args, **kwargs) -> str:
+        if isinstance(prompt, str):
+            prompt = prompt.strip()
+        ollama_model = self._model.replace('ollama:','')
+        while True:
+            try:
+                url = f"http://{self._host}/api/generate"
+                headers = {"Content-Type": "application/json"}
+                data = {
+                    "model": ollama_model,
+                    "prompt": prompt,
+                    "stream": False
+                }
+                res = requests.post(url, headers=headers, json=data)
+                resjson = res.json()
+                if 'response' in resjson:
+                    response = resjson['response']
+                    return response
+                else:
+                    print(res.status_code)
+                    print(f"[OLLAMA ERROR] Requesting {url} with data: {data}\n")
+                    print(f"[OLLAMA RESPONSE] {resjson}\n")
+                    return {"ollama error": resjson.get("error", "Unknown error")}
+            except Exception as e:
+                self._cumulative_error += 1
+                if self.debug_mode:
+                    if self._cumulative_error == 10:
+                        raise RuntimeError(f'{self.__class__.__name__} error: {traceback.format_exc()}.'
+                                           f'You may check the Ollama ({ollama_model}) service.')
+                else:
+                    print(f'{self.__class__.__name__} error: {traceback.format_exc()}.'
+                          f'You may check the Ollama ({ollama_model}) service.')
+                    time.sleep(2)
+                continue
+            
+    def remote_draw_sample(self, prompt: str | Any, *args, **kwargs) -> str:
         if isinstance(prompt, str):
             prompt = [{'role': 'user', 'content': prompt.strip()}]