AssemblyAI
Voice AI infrastructure for builders
4.8•30 reviews•7K followers
Voice AI infrastructure for builders
4.8•30 reviews•7K followers
AssemblyAI builds advanced speech language models that power next-generation voice AI applications. Its industry-leading speech-to-text delivers highly accurate transcription along with speaker detection, summarization, PII redaction, LLM gateway, and a Voice Agent API.
With async and real-time streaming support, developers can easily integrate AssemblyAI into AI notetakers, voice agents, AI medical scribes, call analytics tools, and more.
This is the 10th launch from AssemblyAI. View more
Universal-3.5 Pro
Launched this week
Universal-3.5 Pro is AssemblyAI's most accurate speech-to-text model, now available at our Realtime & Async endpoints. It transcribes every conversation exactly as it's heard—code-switching across 18 languages, our most accurate speaker diarization yet, and contextual prompting to steer results.
Free
Launch Team
Congrats on the launch! The code-switching support is honestly what stood out to me most, built for real conversations instead of clean single-language audio. Also like that the contextual prompting section shows actual before/after examples instead of just claims. Curious how it handles domain-specific jargon at scale, like the medical entity example. Is there a limit to how much context you can feed it before latency takes a hit on the Realtime endpoint?
The PII redaction + LLM gateway combo is the part I would wire in first for anything touching call recordings. Concrete question on the boundary: does redaction happen before the raw transcript is ever persisted or logged on your side, or is it a post-processing pass over a transcript you have already stored? And with contextual prompting to steer results, does the prompt/context I pass get retained or logged anywhere, or is it dropped right after the request?
Just tested this with a few recordings, and it’s great. The speaker diarization is very accurate.
AssemblyAI
@imukulmunjal thanks for giving it a shot, Mukul! Glad to hear you had a good experience
@lakshminath_dondeti Great to see more attention on multilingual audio. Many conversations today naturally mix languages, and AI should handle that without extra setup.
AssemblyAI
@lakshminath_dondeti @alex_j_jemmy Appreciate it, both! 🙌
We agree, and those folks aren't just speaking a single language at a time. I know we just launched today, but excited to say an update with even more languages is around the corner too.
Can't wait to hear what you think once you test it!