https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-webrtc-realtime-comms-2026-livekit-daily-agora-twilio-pion-mediasoup-jitsi-janus-aws-ivs-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-webrtc-realtime-comms-2026-livekit-daily-agora-twilio-pion-mediasoup-jitsi-janus-aws-ivs-deep-dive.en Five years after WebRTC 1.0 became a W3C Recommendation in 2021, WebRTC NV (Next Version) has pulled RTCRtpScriptTransform, Encoded Frame APIs, AV1 and L1T3 SVC into formal standards. Twilio Programmable Video shut down on 2024-12-05, and LiveKit, Daily, Agora and Cloudflare Calls have filled the void. OpenAI Realtime API adopted LiveKit Agents as its official SDK, while Anthropic Claude voice, Cartesia Sonic and ElevenLabs Conversational AI all ride on WebRTC. This guide maps the 2026 real-time communications stack end to end — from the standards (RTCPeerConnection, DTLS-SRTP, ICE, WHIP/WHEP) through SFU architectures, a 9-platform comparison, and AI voice agent integration. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) webrtclivekitdailyagoratwiliopionmediasoupjitsijanusaws-ivsreal-time-commsenglish https://www.youngju.dev/blog/culture/2026-05-16-webrtc-realtime-comms-2026-livekit-daily-agora-twilio-pion-mediasoup-jitsi-janus-aws-ivs-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-webrtc-realtime-comms-2026-livekit-daily-agora-twilio-pion-mediasoup-jitsi-janus-aws-ivs-deep-dive.ja WebRTC 1.0 が 2021 年に W3C 勧告となってから 5 年、いまや WebRTC NV（Next Version）が RTCRtpScriptTransform · Encoded Frame API · AV1 · L1T3 SVC を正式標準へと押し上げた。Twilio Programmable Video は 2024-12-05 に終了し、その空白に LiveKit · Daily · Agora · Cloudflare Calls が入り込んだ。一方で OpenAI Realtime API は LiveKit Agents を公式 SDK に採用し、Anthropic Claude voice · Cartesia Sonic · ElevenLabs Conversational AI もすべて WebRTC 上で動く。本稿は 2026 年のリアルタイム通信スタックを — 標準（RTCPeerConnection · DTLS-SRTP · ICE · WHIP/WHEP）から SFU アーキテクチャ、9 プラットフォーム比較、AI 音声エージェント統合まで — ひと息で整理する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) webrtclivekitdailyagoratwiliopionmediasoupjitsijanusaws-ivsreal-time-comms日本語 https://www.youngju.dev/blog/culture/2026-05-16-webrtc-realtime-comms-2026-livekit-daily-agora-twilio-pion-mediasoup-jitsi-janus-aws-ivs-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-webrtc-realtime-comms-2026-livekit-daily-agora-twilio-pion-mediasoup-jitsi-janus-aws-ivs-deep-dive WebRTC 1.0이 2021년 W3C 권고가 된 지 5년, 이제는 WebRTC NV(Next Version)가 RTCRtpScriptTransform·Encoded Frame API·AV1·L1T3 SVC를 정식 표준으로 끌어올렸다. Twilio Programmable Video는 2024-12-05에 종료되었고, 그 빈자리에 LiveKit·Daily·Agora·Cloudflare Calls가 들어섰다. 한편 OpenAI Realtime API는 LiveKit Agents를 공식 SDK로 채택했고, Anthropic Claude voice·Cartesia Sonic·ElevenLabs Conversational AI는 모두 WebRTC 위에서 동작한다. 이 글은 2026년의 실시간 통신 스택을 — 표준(RTCPeerConnection·DTLS-SRTP·ICE·WHIP/WHEP)부터 SFU 아키텍처, 9개의 주요 플랫폼 비교, AI 음성 에이전트 통합까지 — 한 호흡으로 정리한다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) webrtclivekitdailyagoratwiliopionmediasoupjitsijanusaws-ivsreal-time-comms