Vanna

Vanna is an open-source framework and AI data agent tool designed for natural language database querying and agent development. It allows users to interact with company databases using everyday language rather than writing SQL queries manually. The platform offers multi-turn conversations, user-scoped execution, rich UI components, and optional hosted administrative features to support production deployments.

• Natural language to SQL generation for querying company systems of record
• Multi-database and multi-turn interaction support
• Optional hosted admin features including access control, real-time observability, and distributed tracing
• Hosted vector database for agent memory and learning
• Secure file system storage and retrieval
• Comprehensive activity tracking and compliance via audit logs and data retention
• Built-in quota management and user-scoped execution

Pros

• Enables users across an organization without SQL expertise to query databases directly using natural language
• Supports multiple language model providers and data sources to fit existing technical stacks
• Provides a free open-source framework option that can scale to managed cloud platforms or enterprise deployments
• Includes built-in administrative tools such as access control and audit logs for managing production usage

Cons

• Lower-tier plans carry strict daily question limits, such as 20 questions per day on the Explorer plan
• Requests are rate-limited until the next 24-hour reset if daily question quotas are exceeded
• Enterprise deployment support and advanced features like SAML SSO require custom contact with sales
• Custom work and specialized on-premise, VPC, or private cloud setups require direct enterprise negotiation

Vanna fits development and product teams looking to embed AI-powered data agents into production environments and let non-technical users query databases safely. It is well-suited for organizations wanting to leverage multiple LLM providers and database engines with optional hosted administration. It is a poor fit for teams requiring completely free, unthrottled access to managed cloud infrastructure without relying on self-hosting.

Vanna follows a freemium model alongside its open-source offering. The Explorer plan is designed for small teams of 2-3 people at $50 per month, offering 20 questions per day, admin features, API access, and same-day email support. The Team plan costs $500 per month for small companies or large teams, offering 300 questions per day, setup support, and same-day live support. The Enterprise plan features custom pricing via sales contact, providing unlimited questions, on-prem deployment support, SAML SSO, an admin API, advanced integrations, and custom work. Annual subscriptions include a 20% discount.

Unlike generic language model chat tools, Vanna is built specifically as a data agent framework that connects directly to enterprise databases and language model providers to generate accurate SQL. It pairs an open-source core with optional hosted administrative layers like user-scoped execution, quota management, and a hosted vector database for agent memory. Furthermore, it allows teams to start self-hosting with the open-source version and upgrade to a managed cloud platform or enterprise tier without rewriting their code.

Vanna works with LLM providers including Anthropic, OpenAI, Gemini, and Ollama. It supports database options including SQLite, PostgreSQL, MySQL, Snowflake, and BigQuery, alongside other databases available through documentation.

Vanna is worth trying for development teams and organizations looking to implement natural language database querying and AI agents using an open-source core. It offers flexible pricing tiers and a clear upgrade path from self-hosting to managed cloud or enterprise deployments. Teams should evaluate their daily question volume against the limits of the Explorer and Team plans before committing. The facts do not support a recommendation for teams requiring unsupported database systems without prior verification.