Vanna AI

Vanna AI is a text-to-SQL platform that lets people query databases using plain-language questions instead of writing SQL by hand. At its core is an open-source Python package, Vanna Core, which uses retrieval-augmented generation: it trains on a database's schema, documentation, and past queries, then uses that context to generate accurate SQL for new natural-language questions. The platform is model- and database-agnostic. It works with LLM providers including OpenAI, Anthropic, Gemini, and Ollama, and connects to databases such as PostgreSQL, MySQL, SQLite, Snowflake, and BigQuery, among others. Vanna supports multi-turn conversations, so users can ask follow-up questions to refine a query or explore data further, and it includes access controls, audit logs, and observability for teams that need governance around who can query what. Beyond the open-source core, Vanna offers a hosted Vanna Cloud product with admin features and an Enterprise tier. The company markets it as a way to reduce the time it takes non-technical staff to get insights from data without needing a data analyst for every question. Database contents are not sent to the language model unless a feature specifically requires it.