ai-agents-agent-setup-need-to-create-a-simple-conversational-ai-agent-th-09ac0e00

THEN Install autogen-agentchat and autogen-ext[openai], then instantiate AssistantAgent with an OpenAIChatCompletionClient model. Run the agent with a task using await agent.run().

import asyncio
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient

async def main() -> None:
    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())