diff --git a/pr_agent/algo/__init__.py b/pr_agent/algo/__init__.py
index 20e463c3..cf09f4ad 100644
--- a/pr_agent/algo/__init__.py
+++ b/pr_agent/algo/__init__.py
@@ -24,6 +24,8 @@ MAX_TOKENS = {
     'o1-mini-2024-09-12': 128000,  # 128K, but may be limited by config.max_model_tokens
     'o1-preview': 128000,  # 128K, but may be limited by config.max_model_tokens
     'o1-preview-2024-09-12': 128000,  # 128K, but may be limited by config.max_model_tokens
+    'o1-2024-12-17': 204800,  # 200K, but may be limited by config.max_model_tokens
+    'o1': 204800,  # 200K, but may be limited by config.max_model_tokens
     'claude-instant-1': 100000,
     'claude-2': 100000,
     'command-nightly': 4096,
diff --git a/pr_agent/algo/ai_handlers/litellm_ai_handler.py b/pr_agent/algo/ai_handlers/litellm_ai_handler.py
index c53c1ec3..c8a752f8 100644
--- a/pr_agent/algo/ai_handlers/litellm_ai_handler.py
+++ b/pr_agent/algo/ai_handlers/litellm_ai_handler.py
@@ -193,8 +193,8 @@ class LiteLLMAIHandler(BaseAiHandler):
                 messages[1]["content"] = [{"type": "text", "text": messages[1]["content"]},
                                           {"type": "image_url", "image_url": {"url": img_path}}]
 
-            # Currently O1 does not support separate system and user prompts
-            O1_MODEL_PREFIX = 'o1-'
+            # Currently, model OpenAI o1 series does not support a separate system and user prompts
+            O1_MODEL_PREFIX = 'o1'
             model_type = model.split('/')[-1] if '/' in model else model
             if model_type.startswith(O1_MODEL_PREFIX):
                 user = f"{system}\n\n\n{user}"