The global voice AI market crossed $22B in 2026. We compare VideoSDK, Vapi, LiveKit Agents, Retell AI, ElevenLabs, Deepgram, and Bland AI across latency, pricing, managed inference, and real-world developer use cases.

VideoSDK, Agora, Twilio, Vonage, and Zoom Video SDK compared on pricing, AI features, latency, interactive features, and developer support. Find the best video SDK for your 2026 project in under 5 minutes.

API keys are static app identifiers. API tokens are short-lived, user-specific credentials with scopes and expiry. Learn which to use and how VideoSDK combines both in a secure real-time architecture.

Build a real-time Voice AI agent in Flutter without dealing with WebRTC, speech-to-text, or audio streaming complexity. With VideoSDK, you can configure your agent, run a starter app, and launch a working voice AI experience across Android, iOS, and desktop in minutes.

A step-by-step developer guide to building a telehealth app that complies with Brazil's LGPD and CFM Resolution 2.314/2022, using VideoSDK Flutter and React SDKs with verified E2EE and geo-fencing setup.

Build a panel live stream where multiple hosts broadcast together via VideoSDK's Interactive Live Streaming. This guide covers SEND_AND_RECV mode, startHls(), RTMP simulcast, layout config, and graceful host drop-off handling.

A step-by-step guide for full-stack developers to build an online doctor consultation platform using VideoSDK. Covers appointment UI, encrypted video sessions, PubSub chat, cloud recording, and real-time transcription with verified React code.

A step-by-step guide to building a multi-participant live video cam room app using WebRTC and VideoSDK. Covers setup, video grids, audio, chat, screen sharing, and scalability.

A step-by-step guide to building a host-viewer live streaming app with VideoSDK's Interactive Live Streaming (ILS/HLS), real-time reactions via PubSub, and CDN delivery that scales to thousands of concurrent viewers.