OpenAI Agents SDK

pip install openai-agents

import os
from openai import AsyncOpenAI
from agents import Agent, OpenAIChatCompletionsModel, Runner, function_tool, set_tracing_disabled

client = AsyncOpenAI(base_url="https://api.opencheap.si/v1", api_key=os.environ["OPENCHEAP_API_KEY"])
set_tracing_disabled(True)


@function_tool
def get_weather(city: str) -> str:
    """Get the weather for a city."""
    return f"Sunny in {city}"


agent = Agent(
    name="Assistant",
    instructions="Answer in one sentence.",
    model=OpenAIChatCompletionsModel(model="claude-sonnet-5", openai_client=client),
    tools=[get_weather],
)
result = Runner.run_sync(agent, "What's the weather in Paris?")
print(result.final_output)