Update app.py

app.py

@@ -22,7 +22,7 @@ def configure_gemini(api_key):
     genai.configure(api_key=api_key)
     return genai.GenerativeModel('gemini-2.0-flash-thinking-exp')
 
-model = configure_gemini(os.environ['Gemini'])
+model = configure_gemini(os.environ['GOOGLE_API_KEY'])
             
 # Initialize Gemini models
 llm_flash_exp = ChatGoogleGenerativeAI(model="gemini-2.0-flash-exp")