responses.create() hangs indefinitely with GPT-5 models while direct REST API call completes successfully#2725
Description
Confirm this is an issue with the Python library and not an underlying OpenAI API
- This is an issue with the Python library
Describe the bug
When using the Responses API with GPT-5 models (specifically gpt-5-nano-2025-08-07) via the Python SDK, the call client.responses.create() hangs indefinitely and eventually times out after ~30 seconds.
The same request, when made directly via the REST API (curl), completes successfully in about 12 seconds with "status": "completed".
This indicates the issue is likely within the Python SDK implementation, not the OpenAI backend.
To Reproduce
Working REST API call (completes in ~12 seconds)
curl https://api.openai.com/v1/responses \ -H "Content-Type: application/json" \ -H "Authorization: Bearer $OPENAI_API_KEY" \ -d '{"model": "gpt-5-nano-2025-08-07", "instructions": "Analyze the following newsletters and produce a 400-word abstract with 5 key bullet points.", "input": "Sample newsletter content here...", "store": true }' Result: Completes in ~12 seconds with "status": "completed" and full output available.
Failing Python SDK call (times out after 30+ seconds)
import asyncio from openai import AsyncOpenAI async def test(): client = AsyncOpenAI(api_key="sk-...") response = await client.responses.create( model="gpt-5-nano-2025-08-07", instructions="Analyze the provided content and summarize it.", input="Sample newsletter content here...", max_output_tokens=600, store=True, ) print(f"Initial response: id={response.id}, status={response.status}") for _ in range(30): await asyncio.sleep(1) response = await client.responses.retrieve(response.id) print(f"Status:{response.status}") if response.status == "completed": print("Completed successfully") return raise TimeoutError("Timed out after 30 seconds") asyncio.run(test()) Result: The call times out after 30+ seconds; status never becomes "completed".
Code snippets
OS
14.6
Python version
3.12
Library version
2.6.1