Async Performance Evaluation

1"""This example shows how to run a Performance evaluation on an async function."""
2
3import asyncio
4
5from kern.agent import Agent
6from kern.eval.performance import PerformanceEval
7from kern.models.openai import OpenAIResponses
8
9
10# Simple async function to run an Agent.
11async def arun_agent():
12    agent = Agent(
13        model=OpenAIResponses(id="gpt-5.2"),
14        system_message="Be concise, reply with one sentence.",
15    )
16    response = await agent.arun("What is the capital of France?")
17    return response
18
19
20performance_eval = PerformanceEval(func=arun_agent, num_iterations=10)
21
22# Because we are evaluating an async function, we use the arun method.
23asyncio.run(performance_eval.arun(print_summary=True, print_results=True))

1uv pip install -U openai kern-ai

1python performance_async.py