AssemblyAI
Speech-to-text and audio intelligence API for developers building voice applications
About AssemblyAI
AssemblyAI, founded in 2017 by Dylan Fox, provides speech AI models via API including speech-to-text, speaker diarization, sentiment analysis, and LeMUR for LLM-based audio understanding. Their Universal-2 model offers state-of-the-art accuracy across 99 languages. Customers include CallRail, Fireflies, Veed, Otter ecosystem competitors, and thousands of other voice-first products. The company raised $50M Series C in 2023.
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- AI & Machine Learning Tools
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