Responses Code Interpreter File Input Error

API
1

Hello,
I am trying to attach files for use in the code interpreter while creating a new Response object however I am getting an “unknown_parameter” error despite following the exact format of the documentation:

my request:
{
“model”: “gpt-4.1”,
“tools”: [{
“type”: “code_interpreter”,
“container”: {“type”: “auto”, “files”: [“file-RHX729yPuiDrbrjkouw2RH”, “file-JKhgNcpEbLZJz58vYu7iaK”]}
}],
“instructions”: “You are a chatbot that analysis telematics csv files”,
“input”: “What is the average idling duration in minutes?”
}

Response:
{
“error”: {
“message”: “Unknown parameter: ‘tools[0].container.files’.”,
“type”: “invalid_request_error”,
“param”: “tools[0].container.files”,
“code”: “unknown_parameter”
}
}

Documentation shows the following:

The image provides an example of calling the OpenAI Responses API using a tool call to the Code Interpreter, along with an explanation about container objects and how to create them for running Python code. (Captioned by AI)
The image provides an example of calling the OpenAI Responses API using a tool call to the Code Interpreter, along with an explanation about container objects and how to create them for running Python code. (Captioned by AI)753×773 90 KB

““container”: { “type”: “auto”, files: [“file-1”, “file-2”] }”

Any help would be greatly appreciated

2

It seems the doc has a typo.

It is not “files” but “file_ids”:

tools=[
    {
      "type": "code_interpreter",
      "container": {
        "type": "auto",
        "file_ids": [
          "file-xyz", "file-xyz2"
        ]
      }
    }
5 Likes
3

Would you look at that, it worked perfectly. Thank you sir!!!

2 Likes
4

We’ve got a great dev community here. Hope you stick around!

1 Like
5

You are the savior! Thanks!
I confirmed the solution - It is not “files” but “file_ids”

I also wonder how do you know it is a typo in the doc?

6

The playground creates code examples as you interact. The code generator there got it right.

1 Like
7

Brutal, this cost me a couple of hours of my life today. Fix your docs OpenAI!

2 Likes