| Description | Vapi is an API-first platform for building, testing, and deploying voice AI agents that handle phone calls and conversations across telephony, web, and mobile. It combines speech-to-text, language models, and text-to-speech, lets developers bring their own models, and provides orchestration, real-time monitoring, automated testing, and enterprise-grade reliability. It supports over 100 languages and can scale to millions of calls with sub-500ms latency. | Vogent is a platform for building humanlike voice AI agents that can place and handle phone calls, using building blocks like IVR detection and navigation models, low-latency custom voices, and conversational LLMs fine-tuned on millions of phone calls. It offers a no-code drag-and-drop Flow Builder as well as APIs and SDKs for developers, plus call history, outcome extraction, and post-call automations. Users can host agents on live phone numbers and bring their own OpenAI-compatible models. |
