AssemblyAI: Universal-3 Pro Streaming

AssemblyAI is building the backbone of the voice AI revolution. Their new Universal-3 Pro Streaming is being called the most accurate real-time transcription model for voice agents ever built—and they're so confident in it they gave it away free for all of February. That's not a gimmick, that's a flex. They've got the full stack covered: streaming speech-to-text, speech understanding, LLM Gateway, Guardrails, and even speech-to-speech capabilities. Zoom uses them for AI research. Siro achieved a 90 percent reduction in customer complaints using their tech. When the biggest players in voice AI are building on your infrastructure, you've already won.

The team includes Luka Chkhetiani, Dylan Fox, Ryan Eloff, Jay Shah, and Susan Pan—operators who've been in the speech AI space long enough to know what enterprises actually need. They serve everyone from startups to Fortune 500s across conversation intelligence, medical transcription, contact centers, and AI notetakers. Whether you want cloud deployment or self-hosted solutions, they've got it. The voice-first future isn't coming—it's already here, and AssemblyAI is the engine powering it.