Model seems to ignore .optional() fields, and instead uses nullary values, empty strings etc'

[uriva]

Confirm this is a Node library issue and not an underlying OpenAI API issue

• This is an issue with the Node library

Describe the bug

Model seems to ignore .optional() fields, and instead uses nullary values, empty strings etc'

I'm not sure if it's a library issue or chatgpt model issue.

To Reproduce

I suspect this is a KI or an upstream problem, but let me know if not I'll send a repro

Code snippets

No response

OS

ubuntu

Node version

22.7.0

Library version

4.57.0

[uriva]

According to the docs, the model treats all fields as required, but it is recommended to use a union with null to achieve this: https://platform.openai.com/docs/guides/structured-outputs#all-fields-must-be-required

This sounds like zod's .optional should be interperted like that.