ai-agents-assistant-creation-want-to-create-a-basic-assistant-agent-using-opena-7e36c985

THEN Use the `AssistantAgent` from `autogen_agentchat.site_1` with an `OpenAIChatCompletionClient` configured with the desired model (e.g., gpt-4.1). The agent can be invoked with `agent.run(task=...)`.

import asyncio
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient
async def main():
    model_client = OpenAIChatCompletionClient(model="gpt-4.1")
    agent = AssistantAgent("assistant", model_client=model_client)
    print(await agent.run(task="Say 'Hello World!'"))
    await model_client.close()
asyncio.run(main())