Update langgraph_agent.py

langgraph_agent.py

@@ -189,7 +189,7 @@ tools = [
     read_file_content,
     python_interpreter,
     describe_image,
-    transcribe_audio, # Re-added tool
+    transcribe_audio,
 ]
 
 
@@ -202,7 +202,7 @@ def build_graph(provider: str = "gemini"):
     """Build the LangGraph agent with chosen LLM (default: Gemini)."""
     if provider == "gemini":
         llm = ChatGoogleGenerativeAI(
-        model= "gemini-1.5-flash-preview-05-20",
+        model= "gemini-2.5-pro-preview-05-06", # Reverted model to gemini-2.5-pro-preview-05-06
         temperature=1.0,
         max_retries=2,
         api_key=GEMINI_API_KEY,