Vanna

概述

Vanna is an open-source Python framework that turns natural-language questions into SQL queries for your own database. It uses retrieval-augmented generation trained on your schema, documentation, and past queries, and works with many LLMs and databases. The framework is free under the MIT license, with an optional hosted service.

主要功能

• Natural-language to SQL over your own schema
• RAG-based training on DDL, docs, and example queries
• Works with many LLM providers and databases
• Python package plus optional web and Slack interfaces

适用场景

• Self-service analytics for non-SQL users
• Embedding text-to-SQL in internal tools
• Accelerating ad-hoc data exploration for analysts

定价

Vanna is free and open source (MIT); costs come from the LLM API you connect, and an optional hosted version is offered separately.

常见问题

What does Vanna do?

Vanna generates SQL from natural-language questions, using RAG trained on your database schema and past queries.

Is Vanna free?

Yes. Vanna is MIT-licensed open source; you pay only for the LLM API you choose to connect.

Which databases does Vanna support?

Vanna works with many common databases, including Postgres, MySQL, BigQuery, and Snowflake, via Python connectors.

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来源

• Official website ↗
• Source code (GitHub) ↗

本记录最近复核于 2026-07-30。

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