AssemblyAI
The best way to build Voice AI apps with one robust API
4.8•25 reviews•6.3K followers
The best way to build Voice AI apps with one robust API
4.8•25 reviews•6.3K followers
Build new AI products with voice data leveraging AssemblyAI’s industry-leading Voice AI models for accurate speech-to-text, speaker detection, sentiment analysis, PII redaction, streaming speech recognition and more.
Join 5,000+ industry-leading companies, including Fireflies.ai, Glean, and Calabrio, unlocking the power of voice data and launching best-in-class products and experiences.
AssemblyAI
Launch date
Universal-3 Pro The first of its kind promptable speech language model
Launched on February 4th, 2026
Universal-Streaming Ultra-fast, ultra-accurate streaming STT for voice agents.
Launched on June 3rd, 2025
AssemblyAI Auto Chapters Automatically summarize audio and video files with an API
Launched on November 29th, 2021
AssemblyAI - Speech-to-Text API APIs to automatically transcribe and understand audio
Launched on August 4th, 2017