LocalGPT is a solid open-source solution for businesses that need to query their private documents using AI while keeping everything local. It's essentially a self-hosted version of ChatGPT for your company docs, which is exactly what many privacy-conscious businesses need. The technical barrier is real though - you'll need someone comfortable with Python and model management to get it running.
The value proposition is compelling: get enterprise-grade document AI capabilities without paying monthly fees or sending sensitive data to third parties. However, you're trading convenience for privacy and cost savings. This isn't a plug-and-play solution, but for businesses with technical resources or strong privacy requirements, it's a powerful tool that can handle everything from HR policies to technical documentation.