Defog

Defog is an AI data analyst that uses fine-tuned large language models to query structured data, including enterprise databases and CSV files. It targets data teams and business users who need on-demand answers without waiting on analysts. The platform connects to databases from Postgres to Snowflake and translates natural-language questions into SQL. Its flagship open-source model, SQLCoder, is purpose-built for text-to-SQL and is reported to match or exceed the accuracy of much larger general models. Defog emphasizes data privacy, interpretability, and adaptation based on user feedback.

Best for: Data and analytics teams at mid-market and enterprise companies that need self-serve natural-language data access.

• Text-to-SQL query generation across multiple database dialects
• Natural-language data exploration and drill-down
• Self-service business intelligence for non-technical users
• Database query explanation and optimization
• Enterprise data analysis over warehouses like Snowflake

• Natural-language to SQL query generation
• Fine-tuned SQLCoder LLM for text-to-SQL
• Multi-database support including Postgres and Snowflake
• CSV file querying without a database
• Connectors for external data platforms and tools
• Follow-up question support for iterative exploration
• Schema-aware query generation
• Data not shared with the AI model

Paid pricing from $5, enterprise on request. Plans: Enterprise, Custom, Unlimited.

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