Most helpdesks charge per seat from day one, then bill AI per resolved conversation. Onsites AI flips it: three seats free forever, the fourth $15/month, and AI at a flat per-credit rate (about $0.03 for a drafted reply). One inbox for website chat, email, Telegram, WhatsApp and Messenger, with CRM, quotes and invoices on the same customer record - and an AI that cites the documents it answered from. Cloud or self-hosted.