How to use it
Count the people who reply to customers in a typical week. That is your seat number. Engineers who jump in on escalations once a month usually don’t need a full seat on Weft or Plain.
For AI, start with zero, then try the number of conversations you think an agent could close on its own: password resets, how-to questions, status checks. Per-resolution pricing makes a big difference at a few hundred a month, and plan limits (Plain’s seat caps, Zendesk’s included resolutions) change which plan you’d actually be on.
Pylon isn’t included because its AI credit price and seat minimum aren’t published. See Weft vs Pylon for what is.