Query Vary is a tool tailored for developers to design, test, and refine prompts for LLM applications, providing a comprehensive and efficient testing suite. Key features include prompt optimization, analytics, abuse prevention, embedding fine-tuned LLMs into JavaScript, and multi-model comparison. It aims to save up to 30% of time on prompt testing, boost productivity by 80%, reduce application abuse by 50%, and enhance output quality by 89%. Trusted by leading companies, Query Vary offers flexible plans to accommodate various budgets and needs.