AI Chatbot Cost Calculator

Estimate the monthly cost of running an AI chatbot based on users, messages, tokens, and API pricing.

Monthly users who talk to the chatbot.
Average user messages per month.
Includes prompt, user message, and context.
Average chatbot response length.
Your model’s input token price.
Your model’s output token price.
Extra tokens for system prompts, tools, retries.
Server, vector DB, chatbot platform, etc.
Optional: compare AI cost vs human support.
How we calculate
  • Total conversations = active users × messages per user
  • Input/output token costs are calculated per 1M tokens
  • Overhead adds a buffer for system prompts, tools, retrieval, and retries
  • Savings compare estimated human support cost with chatbot monthly cost