Add new AI models to agent and update requirements.txt

agent.py

@@ -3,9 +3,19 @@ from agno.models.openai import OpenAIChat
 from agno.tools.reasoning import ReasoningTools
 from agno.tools.duckduckgo import DuckDuckGoTools
 from agno.tools.wikipedia import WikipediaTools
+from agno.models.xai import xAI
+from agno.models.google import Gemini
+from agno.models.openrouter import OpenRouter
 
 test_question = "On June 6, 2023, an article by Carolyn Collins Petersen was published in Universe Today. This article mentions a team that produced a paper about their observations, linked at the bottom of the article. Find this paper. Under what NASA award number was the work performed by R. G. Arendt supported by?"
 
+model = {
+    "grok": xAI(id="grok-3-beta"),
+    "gpt": OpenAIChat(id="gpt-4.1-nano"),
+    "gemini": Gemini(id="gemini-2.5-pro-preview-03-25"),
+    "open_router": OpenRouter(id="qwen/qwen3-235b-a22b")
+}
+
 
 def get_current_date() -> str:
     import datetime
@@ -14,7 +24,7 @@ def get_current_date() -> str:
 
 
 agent = Agent(
-    model=OpenAIChat(id="gpt-4.1-nano"),
+    model=model["open_router"],
     markdown=False,
     debug_mode=True,
     instructions="You are a general AI assistant. I will ask you a question. Report your thoughts, but your final answer must be only the answer itself, with nothing else. The answer should be a number OR as few words as possible OR a comma separated list of numbers and/or strings. If you are asked for a number, don't use comma to write your number neither use units such as $ or percent sign unless specified otherwise. If you are asked for a string, don't use articles, neither abbreviations (e.g. for cities), and write the digits in plain text unless specified otherwise. If you are asked for a comma separated list, apply the above rules depending of whether the element to be put in the list is a number or a string.",

requirements.txt

@@ -3,4 +3,6 @@ requests
 agno
 openai
 duckduckgo-search
-wikipedia
+wikipedia
+google
+google-genai