Stack AI, founded in 2022, targets a specific gap inside larger organizations: business teams, HR, legal, operations, that need an internal AI-powered tool, a document Q&A assistant, a policy-lookup chatbot, without waiting on engineering resources to build and maintain it themselves.
Retrieval-augmented generation over a team's own documents is a core building block, letting a no-code-built internal tool answer questions grounded in a company's actual policies, contracts, or knowledge base rather than generic web knowledge. Visual workflow building keeps the setup accessible to whoever owns the business problem, rather than only a technical team.
There's a free tier for building and testing, and paid plans scale from there based on usage and features. For an HR, legal, or operations team that needs a working internal AI tool grounded in its own documents, built and maintained without pulling in engineering time, Stack AI's no-code, RAG-first design is built specifically for that handoff.







