AssemblyAI

AssemblyAI is a voice AI infrastructure company that provides developer-focused APIs for both pre-recorded and real-time speech-to-text conversion. Trusted by millions of developers, the platform is built around a set of AI models, with the recently released Universal-3.5 Pro as the latest addition. AssemblyAI goes beyond raw transcription by offering capabilities to understand context, intent, and meaning within speech. The platform is architected to support agentic voice workflows in real time and is designed to scale securely from initial prototypes through full production environments. A no-code playground lets builders test models before committing to an integration.

For BPO operations and contact centers, AssemblyAI's APIs provide the core layer for call transcription and voice data analysis. Teams can use the real-time speech-to-text capabilities to generate live call transcripts, supporting agent monitoring and in-call quality reviews without manual effort. The platform's ability to interpret context and intent makes it practical for automating call classification and capturing what customers are actually communicating, not just the literal words. Its agentic workflow support opens the door to building AI-driven voice agents that can handle parts of customer interactions or assist live agents in real time. Because the platform is built to scale, BPOs can run it across large call volumes without rebuilding their infrastructure.