Responses API - Code Interpreter Unable to Retrieve Files

Question

Responses API - Code Interpreter Unable to Retrieve Files

Developer 20

I am able to successfully interact with code interpreter using Responses API, however, when it produces output files, I am unable to retrieve them.

I have tried several different endpoints (example logs below), as well as both the AzureAsyncOpenAI (version="2025-04-01-preview") and the AsyncOpenAI (version="preview") clients.

[TEXT_ANNOTATION] File generated: sample_scatter_chart.png (file_id=cfile_6894b18e4fc8819098a5c19afc56c288, container_id=cntr_6894b1877db081908f07930d4b29f74409df9536a75d20b3)

Attempting to download file cfile_6894b18e4fc8819098a5c19afc56c288 using standard files API

HTTP Request: GET {azure openai resource}/openai/files/cfile_6894b18e4fc8819098a5c19afc56c288/content?api-version=2025-04-01-preview "HTTP/1.1 404 Not Found"

Standard files API failed: Error code: 404 - {'error': {'code': 'notFound', 'message': 'The specified entity cannot be found.'}}, trying alternative methods

Trying endpoint: {azure openai resource}/openai/containers/cntr_6894b1877db081908f07930d4b29f74409df9536a75d20b3/files/cfile_6894b18e4fc8819098a5c19afc56c288/content?api-version=2025-04-01-preview

Trying endpoint: {azure openai resource}/openai/files/cfile_6894b18e4fc8819098a5c19afc56c288/content?api-version=2025-04-01-preview

Trying endpoint: {azure openai resource}/openai/responses/resp_6894b184f984819da23cb2151c221bb0031f8d7e3f3a3258/files/cfile_6894b18e4fc8819098a5c19afc56c288/content?api-version=2025-04-01-preview

Schönwald, Alexander 120

Same here, it's a mess regarding responses and assistants api... We finally wanted to move from assistants to responses because GPT 5 DOES NOT WORK WITH ASSISTANTS and now we see:

{"error": "container_file_download_unavailable", "detail": "Azure OpenAI containers file content endpoint returned 404.", "hint": "On Azure, download Code Interpreter outputs via Files API (assistant/file IDs) or use Azure Agent Service. If you have an OpenAI API key, this endpoint can fallback to OpenAI public containers automatically."}

What are we supposed to do, Microsoft?

tarun narula 0 Reputation points

2025-09-18T15:47:32.2433333+00:00

Were you able to find any solution for this ?
Chris 0 Reputation points

2026-02-13T11:27:51.6033333+00:00

Downloading with files API via client.files.content(file_id) does not work anymore for Responses API. I could not get it working with a direct request via get() and don't want to use agents. What is the solution here?