{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2026-08-05-bytedance-seedrealtime/","md":"https://postcutoff.com/e/2026-08-05-bytedance-seedrealtime/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-08-05-bytedance-seedrealtime","date":"2026-08-05","date_precision":"day","short_title":"ByteDance deploys SeedRealtime, a native audio-visual full-duplex model, in the Doubao app","deck":null,"takeaway":"ByteDance Seed launched SeedRealtime, an end-to-end LLM that listens, watches (live video) and speaks at the same time instead of chaining ASR, vision and TTS, and rolled it out at scale in Doubao (Dola internationally).","category":"model-release","category_label":"Model releases","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"ByteDance Seed - SeedRealtime released","url":"https://seed.bytedance.com/en/blog/seedrealtime-audio-visual-full-duplex-llm-released-toward-omni-modal-natural-interaction","type":"official","group":"primary","domain":"seed.bytedance.com"},{"n":2,"title":"ByteDance Seed - SeedRealtime page","url":"https://seed.bytedance.com/en/SeedRealtime","type":"official","group":"primary","domain":"seed.bytedance.com"},{"n":3,"title":"ByteDance Seed - Seed Audio 1.0","url":"https://seed.bytedance.com/en/blog/from-speech-to-audio-creation-introducing-the-seed-audio-1-0-audio-creation-model","type":"official","group":"primary","domain":"seed.bytedance.com"},{"n":4,"title":"TechNode - ByteDance launches SeedRealtime","url":"https://technode.com/2026/08/05/bytedance-launches-seedrealtime-full-duplex-audio-video-model/","type":"press","group":"press","domain":"technode.com"}],"official":3,"filed":"2026-09-29","updated":"2026-09-29","orgs":["ByteDance"],"title":"ByteDance deploys SeedRealtime, a native audio-visual full-duplex model, in the Doubao app","summary":"ByteDance Seed launched SeedRealtime, an end-to-end LLM that listens, watches (live video) and speaks at the same time instead of chaining ASR, vision and TTS, and rolled it out at scale in Doubao (Dola internationally). ByteDance says it halves conversational pacing problems compared with cascaded systems.","key_facts":["Announced 2026-08-05 by ByteDance Seed","Single model over continuous audio, video and text streams; full-duplex with proactive interaction","Uses visual context to resolve homophones and references to what the camera sees","Available in Doubao/Dola and BytePlus Playground; no public API id or pricing announced","Two weeks after Seed Audio 1.0 (2026-07-20), a one-pass speech+SFX+ambience model"],"key_numbers":[],"tags":["voice","full-duplex","multimodal","video","doubao","china"],"science":null,"body_md":"## What happened\n\nByteDance's Seed team shipped an audio-visual full-duplex model to Doubao, China's largest consumer chatbot, letting users\nhold natural video-call-style conversations with the assistant (demos include menu translation, museum guiding and\nwalking through an espresso machine).\n\n## Why it matters\n\nIt puts end-to-end \"see, hear and talk at once\" interaction in front of a mass consumer audience. ByteDance published only\nhuman-evaluation claims, no quantitative benchmarks.","disputed":[],"related":[{"id":"2026-09-23-qwen-audio-3-1","url":"https://postcutoff.com/e/2026-09-23-qwen-audio-3-1/","date":"2026-09-23","date_precision":"day","short_title":"Alibaba launches Qwen-Audio-3.1 five-model voice stack and cuts audio API prices up to 95%","deck":null,"takeaway":"Chinese labs (Alibaba, StepFun, ByteDance) now field voice-agent models that top or approach GPT-Live / Gemini Live on public leaderboards at a fraction of the price, turning real-time voice into a price war.","category":"model-release","category_label":"Model releases","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":10,"official":8,"filed":"2026-09-29","updated":"2026-09-30","orgs":["Alibaba","Qwen"]},{"id":"2026-09-15-stepfun-stepaudio-3","url":"https://postcutoff.com/e/2026-09-15-stepfun-stepaudio-3/","date":"2026-09-15","date_precision":"day","short_title":"StepFun releases StepAudio 3 family","deck":"Its Realtime model tops Artificial Analysis full-duplex rankings","takeaway":"Chinese lab StepFun launched StepAudio 3, five audio models (Realtime, ASR Max, TTS, Gen, Music).","category":"model-release","category_label":"Model releases","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":7,"official":5,"filed":"2026-09-29","updated":"2026-09-29","orgs":["StepFun"]}],"people":[],"posts":[],"videos":[],"models":[{"id":"seedrealtime","name":"SeedRealtime (Doubao realtime audio-visual model)","url":"https://postcutoff.com/m/seedrealtime/"}],"changes":[{"date":"2026-09-29","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-09-29","run":null,"sources_read":null,"updated":"2026-09-29","human_review":null,"version":{"date":"2026-10-04"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":97,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":36,"in_training_data":false},{"model_id":"gemini-4-hydrogen","name":"Gemini 4 Hydrogen","cutoff":"2026-03","days_after":127,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":66,"in_training_data":false}],"short_url":null}