'AsyncOpenAI' Object Has No Attribute 'responses' in Async Runner & 'this event loop is already running' in Sync Runner

[RocketDonald]

Describe the bug

I cannot run the agent as it keeps raising the 'AsyncOpenAI' Object Has No Attribute 'responses' Error. Moreover, if I run the agent with run_sync, an error message 'this event loop is already running' shows.

Debug information

• Agents SDK version: v0.0.11 (Also happens with v0.0.9)
• OpenAI version: v1.75.0 (Also tried downgrading to v1.66.5, same issue happened)
• Python version v3.12.4

Repro steps

class AgentRequest(BaseModel):
    user_idea: str

@router.get("/begin_thinking", status_code=status.HTTP_200_OK)
async def begin_thinking(
    topics: AgentRequest,
) -> JSONResponse:
    try:
        try:
            agent = Agent(
                name = "Testing Agent",
                instructions="You are a cat, so you need to think like a cat and add cat emojis to your response."
            )
        except Exception as e:
            raise Exception(f"Error in the agent creation: {e}")
        
        
        logger.debug(f"Beginning thinking with topics: {topics.user_idea}")
        
        try:
            result = Runner.run_sync(
                starting_agent=agent, input=topics.user_idea
            )
        except Exception as e:
            raise Exception(f"Error in the agent run: {e}")
        
        if not result:
            raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="No results found")
        
        return JSONResponse(
            content={
                "status": "success",
                "data": result.final_output,
            },
            status_code=status.HTTP_200_OK,
        )
       
    except Exception as e:
        logger.error(f"Error in running the agent: {e}")
        raise HTTPException(status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail=f"Something went wrong while running the agent. {e}")

Logger Record When I use Runner.run()

DAOS DEBUG LOGS: 2025-04-18 08:48:18,133 - openai.agents - DEBUG - Creating trace Agent workflow with id trace_f73ee56d23f74f098d7990c3cdfc9336
DAOS DEBUG LOGS: 2025-04-18 08:48:18,133 - openai.agents - DEBUG - Setting current trace: trace_f73ee56d23f74f098d7990c3cdfc9336
DAOS DEBUG LOGS: 2025-04-18 08:48:18,133 - openai.agents - DEBUG - Creating span <agents.tracing.span_data.AgentSpanData object at 0xfffefbb6cf40> with id None
DAOS DEBUG LOGS: 2025-04-18 08:48:18,133 - openai.agents - DEBUG - Running agent Testing Agent (turn 1)
DAOS DEBUG LOGS: 2025-04-18 08:48:18,137 - openai.agents - DEBUG - Creating span <agents.tracing.span_data.ResponseSpanData object at 0xfffefbf991c0> with id None
DAOS DEBUG LOGS: 2025-04-18 08:48:18,138 - openai.agents - DEBUG - Calling LLM gpt-4o with input:
[
{
"content": "The history of train",
"role": "user"
}
]
Tools:
[]
Stream: False
Tool choice: NOT_GIVEN
Response format: NOT_GIVEN
Previous response id: None

DAOS DEBUG LOGS: 2025-04-18 08:48:18,138 - openai.agents - ERROR - Error getting response: 'AsyncOpenAI' object has no attribute 'responses'. (request_id: None)
DAOS DEBUG LOGS: 2025-04-18 08:48:18,138 - openai.agents - DEBUG - Resetting current trace
DAOS DEBUG LOGS: 2025-04-18 08:48:18,139 - asyncio - ERROR - Task exception was never retrieved
future: <Task finished name='Task-4' coro=<Runner.run() done, defined at /usr/local/lib/python3.10/site-packages/agents/run.py:110> exception=AttributeError("'AsyncOpenAI' object has no attribute 'responses'")>
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/agents/run.py", line 218, in run
input_guardrail_results, turn_result = await asyncio.gather(
File "/usr/local/lib/python3.10/site-packages/agents/run.py", line 756, in _run_single_turn
new_response = await cls._get_new_response(
File "/usr/local/lib/python3.10/site-packages/agents/run.py", line 915, in _get_new_response
new_response = await model.get_response(
File "/usr/local/lib/python3.10/site-packages/agents/models/openai_responses.py", line 76, in get_response
response = await self._fetch_response(
File "/usr/local/lib/python3.10/site-packages/agents/models/openai_responses.py", line 242, in _fetch_response
return await self._client.responses.create(
AttributeError: 'AsyncOpenAI' object has no attribute 'responses'
DAOS DEBUG LOGS: 2025-04-18 08:48:18,705 - httpcore.connection - DEBUG - connect_tcp.started host='api.openai.com' port=443 local_address=None timeout=5.0 socket_options=None
DAOS DEBUG LOGS: 2025-04-18 08:48:18,749 - httpcore.connection - DEBUG - connect_tcp.complete return_value=<httpcore._backends.sync.SyncStream object at 0xfffefbb94430>
DAOS DEBUG LOGS: 2025-04-18 08:48:18,750 - httpcore.connection - DEBUG - start_tls.started ssl_context=<ssl.SSLContext object at 0xffff831baec0> server_hostname='api.openai.com' timeout=5.0
DAOS DEBUG LOGS: 2025-04-18 08:48:18,758 - httpcore.connection - DEBUG - start_tls.complete return_value=<httpcore._backends.sync.SyncStream object at 0xfffefbb94400>
DAOS DEBUG LOGS: 2025-04-18 08:48:19,333 - httpx - INFO - HTTP Request: POST https://api.openai.com/v1/traces/ingest "HTTP/1.1 204 No Content"
DAOS DEBUG LOGS: 2025-04-18 08:48:19,334 - openai.agents - DEBUG - Exported 3 items
DAOS DEBUG LOGS: 2025-04-18 08:52:21,951 - openai.agents - DEBUG - Shutting down trace provider
DAOS DEBUG LOGS: 2025-04-18 08:52:21,952 - openai.agents - DEBUG - Shutting down trace processor <agents.tracing.processors.BatchTraceProcessor object at 0xffff83245b40>

Logger Record When I use Runner.run_sync() instead of Runner.run()

DAOS DEBUG LOGS: 2025-04-18 08:48:18,132 - app.routers.agentic_workflow - ERROR - Error in running the agent: Error in the agent run: this event loop is already running.

Expected behavior

The agent should run in both sync and async mode.

[rm-openai]

Can you add this to the top of your code and share what it outputs:

import
print(f"oai version: {openai.__version__}")

Seems like you're somehow on an older openai SDK version

[github-actions]

This issue is stale because it has been open for 7 days with no activity.

[github-actions]

This issue was closed because it has been inactive for 3 days since being marked as stale.