AssemblyAI

Voice AI infrastructure for builders

4.8•34 reviews•

7.1K followers

Voice AI infrastructure for builders

4.8•34 reviews•

7.1K 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.

AssemblyAI launches

Launch date

AssemblyAItext-to-speech built for voice agents

Launched on October 29th, 2026

Blurt Push-to-talk dictation on the AssemblyAI Dictation API

Launched on September 22nd, 2026

Dictation API by AssemblyAIAdd fast, accurate dictation with a single line API call

Launched on September 18th, 2026

Universal-3.5 ProThe most accurate STT model from AssemblyAI.

Launched on July 8th, 2026

Voice Agent APIOne API to build production-ready voice agents

Launched on April 30th, 2026

AssemblyAI: Universal-3 Pro Streaming The most accurate streaming speech model for voice agents.

Launched on March 4th, 2026

Universal-3 ProThe first of its kind promptable speech language model

Launched on February 4th, 2026

Universal-StreamingUltra-fast, ultra-accurate streaming STT for voice agents.

Launched on June 3rd, 2025

Universal 2Speech-to-text for conversational data

Launched on October 31st, 2024

Universal-1Multilingual speech AI model trained on 12.5M hours of data

Launched on May 21st, 2024