diff --git a/devchat/_cli.py b/devchat/_cli.py
index 162f20b6..f07ed6f4 100644
--- a/devchat/_cli.py
+++ b/devchat/_cli.py
@@ -41,7 +41,7 @@ def init_dir() -> Tuple[dict, Store]:
         'model': 'gpt-3.5-turbo',
         'provider': 'OpenAI',
         'OpenAI': {
-            'temperature': 0.2
+            'temperature': 0
         }
     }
 
@@ -106,7 +106,7 @@ def prompt(content: Optional[str], parent: Optional[str], reference: Optional[Li
         "tokens-per-prompt": 3000,
         "provider": "OpenAI",
         "OpenAI": {
-            "temperature": 0.2
+            "temperature": 0
         }
     }
     ```
@@ -119,7 +119,7 @@ def prompt(content: Optional[str], parent: Optional[str], reference: Optional[Li
         "tokens-per-prompt": 6000,
         "provider": "OpenAI",
         "OpenAI": {
-            "temperature": 0.2,
+            "temperature": 0,
             "stream": true
         }
     }
diff --git a/devchat/openai/openai_chat.py b/devchat/openai/openai_chat.py
index d21c0c0c..f4311b25 100644
--- a/devchat/openai/openai_chat.py
+++ b/devchat/openai/openai_chat.py
@@ -11,7 +11,7 @@ class OpenAIChatConfig(BaseModel):
     Configuration object for the OpenAIChat class.
     """
     model: str
-    temperature: Optional[float] = Field(None, ge=0, le=2)
+    temperature: Optional[float] = Field(0, ge=0, le=2)
     top_p: Optional[float] = Field(None, ge=0, le=1)
     n: Optional[int] = Field(None, ge=1)
     stream: Optional[bool] = Field(None)