Not Diamond is a powerful AI model router designed specifically for developers. It intelligently selects the most suitable AI models based on task requirements, significantly reducing costs and latency. It supports out-of-the-box functionality and also allows for the training of custom routers to optimize model routing for specific use cases. The product boasts the ability to quickly select models and supports collaborative prompt optimization, programming optimal prompts for each large language model (LM) without manual adjustments or experiments.