AssemblyAI

AssemblyAI provides AI models and application programming interfaces for converting speech to text and extracting insights from voice data. Its offerings include pre-recorded and real-time speech-to-text APIs, a speech understanding API for summaries, sentiment and entity extraction, guardrails for detecting and redacting personal information in voice data, and AssemblyAI-TTS-1, a text-to-speech model built for voice agents. Customers can use managed cloud inference or run the models self-hosted in their own virtual private cloud or on-premises.

The company serves developers and enterprises building voice-enabled products, including use cases such as voice agents, AI notetakers, call analytics, medical transcription, dictation and AI scribes. Its speech-to-text models support 99 languages, and its Universal-3.6 Pro models handle 32 languages with code-switching. The website cites published benchmark comparisons against other providers and names Zoom among its customers.