What Vapi does
Vapi is a developer platform for building and deploying production voice AI agents that can make/receive phone calls and handle conversational flows with low latency. The platform is positioned as an orchestration layer across speech-to-text (transcription), an LLM/model layer, and text-to-speech (voice), while handling latency optimization, streaming, scaling, and conversation flow so developers can focus on agent behavior and business logic rather than telephony + real-time voice infrastructure. Vapi’s enterprise positioning emphasizes reliability and a “complete voice agent lifecycle” spanning build, deploy, and observe (including logging/analytics, evals/test suites, versioning and A/B testing).