Introducing Testing and Evaluation in AI Voice Agents

Building reliable AI voice agents requires more than demonstrating basic functionality in demos; it necessitates a structured Testing and Evaluation framework to address real-world challenges. While initial validations may confirm functionality through basic interactions, these do not suffice under production conditions where issues like increased response times and transcription errors surface. A systematic approach involves evaluating each component of the AI pipeline—Speech-to-Text (STT), Language Model (LLM), and Text-to-Speech (TTS)—individually and collectively to measure latency, accuracy, and performance. Using the VideoSDK Agent SDK, developers can define metrics, test each component in isolation or as part of the full pipeline, and utilize LLM-as-Judge to assess the qualitative aspects of responses. This comprehensive evaluation process ensures that the AI agent can handle various scenarios, deliver accurate responses, and maintain a seamless user experience, thus building a foundation of trust with users.