GPT-5.4-Mini returns 500 internal errors 95% of the time when providing input files / images as parameters

[Tom3652]

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 i send a prompt like :

EasyInputMessageParam(
                    role="user",
                    content=[
                        ResponseInputTextParam(
                            type="input_text",
                            text=f"<attachment_meta id=\"{attachment_id}\" kind=\"image\" />",
                        ),
                        ResponseInputImageParam(
                            detail="auto", type="input_image", image_url=url
                        )
                    ],
                )

The gpt-5.4-mini model throws and retry 3 times with error 500 internal.
-> If with the exact same input i use gpt-5.4 it works very fine

To Reproduce

1. Simply try to send a request with a ResponseInputImageParam with a valid url and test the response between gpt-5.4-mini and gpt-5.4

Code snippets

OS

MacOS

Python version

3.12.0

Library version

2.31.0

[gongli0929]

Nice work! adding error handling could improve this further.

[Tom3652]

i have an opened case with OpenAI support team to try to understand what is going on but it was worth raising it here as well in case something obvious would come up.