PolyAI, founded in 2017, built its own proprietary conversational model, called Raven, trained specifically on more than a billion enterprise conversations, rather than relying on a general-purpose language model adapted for voice, aiming for natural-sounding, non-robotic voice interaction as its core technical bet.
The company frames its platform as a full-stack "dialog agent" rather than voice functionality bolted onto an existing chat product, offering both a no-code Agent Builder and a developer SDK built on the same underlying runtime. Wide industry coverage spans healthcare, financial services, insurance, hospitality, retail, telecom, travel, and utilities, with named customers including PG&E and Fogo de Chão.
There's no free tier; PolyAI sells through enterprise contracts. For an enterprise specifically prioritizing natural-sounding, non-robotic voice conversation quality, backed by a purpose-built model trained on enterprise-scale conversation data, PolyAI's proprietary Raven model is the specific technical reason to evaluate it over a general-purpose voice AI layer.
