Google announced the their Generative AI technology for Google Workspace just a few days ago called Duet AI for Google Workspace, which I assume is the equivalent of co-pilot
https://workspace.google.com/blog/product-announcements/duet-ai
Similar to Microsoft, there's not a lot of information about it, when will it be available nor how is it going to be priced.
However, it is commonly accepted that AI requires massive amount of data processing and tends to be expensive to operate, leading to speculation that AI based tools may require more expensive plans to pay for them. Again mostly speculation and discussions at this point
https://www.businessinsider.com/ai-expensive-google-chatbot-bard-may-cost-company-billions-dollars-2023-2
Warm Regards