update model to use deepseek-r1-distill-llama-70b

geminiAgent.py

@@ -16,7 +16,7 @@ from PIL import Image
 
 def create_agent():
     return CodeAgent(
-            model=LiteLLMModel(model_id="gemini/gemini-2.0-flash-lite-001", api_key=os.getenv("GEMINI_KEY")),
+            model=LiteLLMModel(model_id="deepseek/deepseek-r1-distill-llama-70b:free", api_key=os.getenv("DEEPSEEK_KEY")),
             tools=[DuckDuckGoSearchTool(), WikipediaSearchTool(), VisitWebpageTool(), ocr_tool, read_csv, read_excel],
             add_base_tools=True,
             additional_authorized_imports=['pandas','numpy','csv','subprocess', 'exec']