{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/assemblyai-universal-3-6-pro-realtime/","md":"https://postcutoff.com/m/assemblyai-universal-3-6-pro-realtime/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":"assemblyai-universal-3-6-pro-realtime","name":"AssemblyAI Universal-3.6 Pro Realtime","org":"AssemblyAI","family":"Universal-3","released":"2026-09-29","status":"current","type":"audio/speech","modality_in":["audio","text"],"modality_out":["text"],"open_weights":false,"model_license":"proprietary","context_window":null,"max_output":null,"knowledge_cutoff":null,"pricing":{"per_hour":0.45,"unit":"per hour of streaming session (same as Universal-3.5 Pro Realtime); Universal-Streaming EN/multi $0.15/hr","source":"https://www.assemblyai.com/pricing"},"price_line":"$0.45 per hour","access":[{"provider":"AssemblyAI API","model_id":"universal-3-6-pro","endpoint":"wss://streaming.assemblyai.com/v3/ws?model=universal-3-6-pro","docs":"https://www.assemblyai.com/blog/universal-3-6-pro-realtime"},{"provider":"AssemblyAI Voice Agent API","model_id":"(default STT)","endpoint":"wss://agents.assemblyai.com/v1/ws"}],"capabilities":[{"name":"Promptable streaming STT for voice agents","detail":"Prompting + keyterms together, real-time diarization, entity-aware endpointing and native code-switching in 32 languages with auto language detection; 5.13% normalized WER (vs 5.80% for 3.5 Pro Realtime), short-response WER 1.45%; median endpoint latency 537 ms.","first":false,"discovered":"launch","source":"https://www.assemblyai.com/blog/universal-3-6-pro-realtime"}],"entry":null,"notes":"Lineage: Universal-3 Pro Streaming (Mar 2026) -> Universal-3.5 Pro Realtime (2026-06-23) -> 3.6 (2026-09-29). Older streaming ids u3-rt-pro/u3-pro replaced. Voice Agent API ($4.50/hr all-in: STT+LLM+TTS) GA April 2026. AssemblyAI roadmap targets 30+ native languages for the next Universal-3.x in Q4 2026.","verified":"2026-09-29","body_md":"Sources: https://www.assemblyai.com/blog/universal-3-6-pro-realtime , https://www.assemblyai.com/llms/models.md , https://www.assemblyai.com/pricing","page_url":"https://postcutoff.com/m/assemblyai-universal-3-6-pro-realtime/","standing":{"kind":"speech and audio","newer_count":13,"newer":[{"id":"nemotron-3-5-transcribe","name":"NVIDIA Nemotron 3.5 Transcribe (30B-A4B)","org":"NVIDIA","released":"2026-10-28","page_url":"https://postcutoff.com/m/nemotron-3-5-transcribe/"},{"id":"hy-simulmt-30b-a3b","name":"Hy-SimulMT-30B-A3B","org":"Tencent","released":"2026-10-22","page_url":"https://postcutoff.com/m/hy-simulmt-30b-a3b/"},{"id":"eleven-realtime-v1-max","name":"Eleven Realtime v1 Max / Mini","org":"ElevenLabs","released":"2026-10-20","page_url":"https://postcutoff.com/m/eleven-realtime-v1-max/"},{"id":"voxtral-mini-transcribe-3","name":"Voxtral Mini Transcribe 3 (+ Mini Transcribe Realtime 3)","org":"Mistral AI","released":"2026-10-20","page_url":"https://postcutoff.com/m/voxtral-mini-transcribe-3/"},{"id":"voxtral-small-transcribe-3","name":"Voxtral Small Transcribe 3","org":"Mistral AI","released":"2026-10-20","page_url":"https://postcutoff.com/m/voxtral-small-transcribe-3/"}],"before":{"id":"assemblyai-universal-3-5-pro","name":"AssemblyAI Universal-3.5 Pro (async)","org":"AssemblyAI","released":"2026-07-07","page_url":"https://postcutoff.com/m/assemblyai-universal-3-5-pro/"},"after":null,"weights":"closed","licence":"proprietary","licence_permissive":false,"summary":"Closed weights; access is hosted only."}}