How much does an AI reply from Meta Business Agent cost on WhatsApp?

Meta charges US$2.00 per million tokens. A reply typically uses 20,000 to 25,000 tokens, so about US$0.04 to US$0.05 per message.

• The charge began on 1 August 2026 and covers the AI work and the message delivery in one price.
• Cost depends on the reply. In Meta's example, a simple opening-hours question answered in 4 messages costs about US$0.16 to US$0.20.
• It needs a payment method (a Meta credit line, or from 8 September 2026 a Visa or Mastercard); without one, replies are not delivered.
• Other messages in a chat started from a click-to-WhatsApp ad are free, but AI replies in it are still charged.
• It is only available in limited countries to select businesses, so you may not be able to turn it on yet.