Official：Need to configure an official API Key。It should be noted that: the official mode will consume its own free quota, and the specific usage can be found in here.
Being non-JetBrains developed plugin, I would recommend checking Q&A and contacting plugin vendor (for instance by Slack) in case any instructions are not clear.
Hello William,
Thank you for contacting Rider forum.
Please follow the vendor's instruction:
Being non-JetBrains developed plugin, I would recommend checking Q&A and contacting plugin vendor (for instance by Slack) in case any instructions are not clear.
GPT-QA
Thank you for understanding and Happy Holidays!
Thanks Happy Holidays!