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Vanna

4.5/5Free / Open Source
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An open-source text-to-SQL framework that uses RAG to write accurate SQL for your database from plain-language questions. Vanna learns your schema so business users can query data by asking, and developers can build data chatbots — free.

What is Vanna?

An open-source text-to-SQL framework that uses RAG to write accurate SQL for your database from plain-language questions. Vanna learns your schema so business users can query data by asking, and developers can build data chatbots — free.

Vanna sits in the data category and is listed in the AIverse AI tools directory, where it holds an editorial rating of 4.5 out of 5 based on its capabilities, usability, value for money and reliability. It is developed by Vanna AI, founded in 2023.

Vanna features and use cases

People typically use Vanna for Natural-language database queries, Self-service analytics, Data chatbots and BI for non-technical teams.

It is often associated with Open Source, Text-to-SQL, Data and RAG. Developers can integrate Vanna into their own products through its API.

Vanna pricing

Vanna is completely free (Free / Open Source). You can use it without a subscription.

As with any AI tool, the right plan depends on how heavily you use it. We recommend trying Vanna before committing to a paid plan.

Is Vanna worth it? Our bottom line

Overall, Vanna is a strong choice in the data category for 2026. Its standout strengths include Accurate text-to-SQL via RAG and Learns your database schema. Bear in mind Setup and training on your schema and For developers to deploy. If it matches your workflow, Vanna is well worth a try — especially since you can start for free.

✅ Our verdict

Vanna is the leading open-source text-to-SQL framework: it learns your schema and turns plain-language questions into accurate SQL, free. Ideal for teams that want non-technical staff to query databases just by asking.

👍 Pros

  • +Accurate text-to-SQL via RAG
  • +Learns your database schema
  • +Lets non-technical users query data
  • +Open source and free
  • +Works with many databases

👎 Cons

  • −Setup and training on your schema
  • −For developers to deploy
  • −Verify generated SQL
  • −Quality depends on schema docs

🎯 Use cases

Natural-language database queriesSelf-service analyticsData chatbotsBI for non-technical teams

ℹ️ Key facts

Company
Vanna AI
Founded
2023
API
Yes

Last updated: Aug 2026

4.5
Rating
11.0k
Views
Free
Pricing

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Try Vanna Now

An open-source text-to-SQL framework that uses RAG to write accurate SQL for your database from plain-language questions. Vanna learns your schema so business users can query data by asking, and developers can build data chatbots — free.

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❓ Frequently Asked Questions

Is Vanna free?

Yes, Vanna is completely free to use, with no paid plan required to access its core features.

What is Vanna used for?

Vanna is an AI data analysis tool. An open-source text-to-SQL framework that uses RAG to write accurate SQL for your database from plain-language questions. Vanna learns your schema so business users can query data by asking, and developers can build data chatbots — free. It currently holds a 4.5/5 rating on Aiverse from real users.

Is Vanna worth it in 2026?

Yes — Vanna holds a strong 4.5/5 rating on Aiverse, making it one of the top-rated data analysis tools in 2026. It's a solid pick if it matches your use case.