[Completions API / gpt-4-vision-preview] Requests with function_call are rejected

Completions API requests containing 'function_call" and “functions” are rejected as invalid when using the gpt-4-vision-preview model, with the following error message :

“2 validation errors for Request\nbody → function_call\n extra fields not permitted (type=value_error.extra)\nbody → functions\n extra fields not permitted (type=value_error.extra)”,“type”:“invalid_request_error”

Same call works with the gpt-4-1106-preview model.


Yes, it seems the vision model may not support function calling yet, despite this from the description of the vision model: “Ability to understand images, in addition to all other GPT-4 Turbo capabilties.”


Same issue here.
Wondering when function calling will come to Vision model. :thinking:


It would also be easier to switch between models if the api could
just ignore unknown parameters instead of erroring out.

1 Like

This! What a pain, that’s caused me to have to add another otherwise redundant setting and If statement …

Me too!