invalid_request_error:unsupported_parameter 'max_tokens' with gpt-5.2 model

[revpjbbq]

Using your ChatGPT Siri 1.3 Shortcut with iOS 26.3 I receive an error when used with ChatGPT 'gpt-5.2' model.

invalid_request_error:
unsupported_parameter

Unsupported parameter: 'max_tokens' is not supported with this model.
Use 'max_completion_tokens' instead.

Editing the two locations in your ChatGPT Siri 1.3 Shortcut that 'max_tokens' appeared with 'max_completion_tokens' did result in a working shortcut.