TL;DR on tokens: A token is roughly 4 characters of text. Every visitor message, AI response, RAG document context, and system prompt counts toward your monthly token usage. The Free plan's 3M tokens supports a solid volume of conversations — but as traffic grows, upgrading to Pro (10M tokens at a much lower $0.015/1K overage rate) delivers dramatically better economics. Want to explore which plan fits your expected volume? Check out
Pricing or [](gptweb://modal/trial) to get started today.