Twilio has updated its pricing for WhatsApp API, simplifying pricing by introducing per-country pricing for top 24 markets and per-region pricing for other countries. The new pricing also includes standard volume tiered pricing that provides progressively increasing discounts for higher volumes. Template Messages will continue to be priced at $0.005 per message, while Session Messages will remain unchanged at $0.005 per message. The updated pricing aims to reduce the complexity of tracking multiple country-specific prices and provide more flexibility for businesses using WhatsApp API.