Lunda.ai is a startup that aims to revolutionize sales coaching through the application of machine learning to sales calls for sellers. The company was founded by Ymir Egilson, who drew inspiration from his experience with the challenges faced by dispersed sales teams and sought to leverage technology, specifically AI, to offer a solution. By integrating ngrok, Lunda.ai streamlines its testing and development workflow, allowing it to iterate rapidly and test integrations without cumbersome deployment processes. The company utilizes a combination of AI models, including Whisper for real-time transcription and a customized variant of Llama LLM for generating advice during calls, which run locally on salespeople's computers to ensure privacy and reduce infrastructure costs.