Sendbird is a developer platform: powerful chat/messaging APIs, UIKits and AI-agent tooling used by large consumer apps. It is not a drop-in support widget — you integrate SDKs and build the experience. Pricing is enterprise-oriented (MAU-based, custom tiers), and the product's center of gravity is in-app messaging infrastructure, not a ready-made support inbox.
Best for: Product teams with engineers who want to BUILD chat, notifications, or AI agents into their own app via SDKs and APIs.
Pricing: Sendbird prices by monthly active users with enterprise tiers and custom quotes; real-world chat API bills commonly start in the hundreds per month and scale with MAU. AI agent products are priced separately.