Stream Chat vs. Telnyx CPaaS

Stream Chat is a messaging API and SDK suite for developers building in-app chat. Teams integrate it to ship production messaging in weeks instead of building and maintaining real-time infrastructure in-house. Client SDKs cover React, Swift, Android, Flutter, React Native, Angular, JavaScript, Unity, and Unreal, each with a UI kit you can customize or replace entirely. The backend runs on Go and RocksDB across 12 global edge locations, holding sub-40ms latency and 5M concurrent connections in a single channel behind a 99.999% uptime SLA.

Telnyx is the only communications and connectivity platform that combines carrier-owned global communications, programmable APIs, voice AI agents, and edge compute under one roof. Through the Telnyx portal and APIs, teams can provision global numbers in many countries, run SIP trunking with HD voice over a private backbone, and build contact center workflows on the Voice API. Add SMS, MMS, RCS, and WhatsApp messaging and calling, all on the same carrier-owned network, and layer in AI-powered voice agents without wiring together separate vendors.