Dear Marco,
you do not need Wolfram Alpha Pro for that, but you will need to make sure that you choose gpt-4.
![enter image description here](https://community.wolfram.com//c/portal/getImageAttachment?filename=Screenshot2023-08-31at14.17.46.png&userId=48754)
Once you have activated get-4 (step 1), you need to choose the Wolfram plugin (when it's activated it should be represented by a little icon). In the plugin store you search for Wolfram. You will need to install the plugin.
![enter image description here](https://community.wolfram.com//c/portal/getImageAttachment?filename=Screenshot2023-08-31at14.24.13.png&userId=48754)
Note, that every time you start a new will need to choose the option of a chat with plugins:
![enter image description here](https://community.wolfram.com//c/portal/getImageAttachment?filename=Screenshot2023-08-31at14.19.56.png&userId=48754)
Best wishes,
Marco