Here is a neutral and interesting summary of the provided text in one paragraph: As more applications enter production, teams are seeking solutions to protect user data from Large Language Models (LLMs) providers. OpaquePrompts serves as a privacy layer around LLMs, ensuring sensitive information remains hidden from providers through natural language processing, sanitization, post-processing, and confidential computing. With just one line of code modification in LangChain applications, developers can add this privacy layer, protecting users' data from concerns about retention, sharing, leakage, and unauthorized access. OpaquePrompts enables LLM application builders to leverage the power of LLMs while maintaining control over sensitive user information, making it an attractive solution for companies across various verticals.