Update app.py

app.py

@@ -38,7 +38,7 @@ class GeminiReActAgent:
             raise ValueError("GEMINI_API_KEY not set")
         
         # Direct REST API endpoint for Gemini 2.5 Flash
-        self.url = f"https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash:generateContent?key={self.api_key}"
+        self.url = f"https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash-latest:generateContent?key={self.api_key}"
         print("Vanilla ReAct Gemini Agent initialized with rate-limit handling.")
 
     def call_gemini(self, history) -> str: