AssemblyAI is a speech AI platform offering industry-leading APIs for speech transcription, audio intelligence, and audio understanding. Its Universal-2 model delivers state-of-the-art accuracy with support for 99 languages, while its audio intelligence layer adds automatic chapters, sentiment analysis, entity detection, PII redaction, and content safety filtering. Developers building voice AI applications, conversation intelligence platforms, and meeting analytics tools choose AssemblyAI for its best-in-class accuracy, comprehensive audio AI features, and developer-friendly documentation that enables production deployment in hours.