6 vetted picks for how much does ai for querying databases cost, ranked by the ToolHund Score. Updated for 2026.
Analysts and operators who want answers from CSVs without SQL.
Power users wanting frontier reasoning for free.
Developers who want per-request LLM logging, caching and cost tracking in minutes.
Teams already living in Notion who want answers across their docs.
Individual developers who want capable code completion at no cost.
Building RAG and agentic apps over private data with strong ingestion pipelines.
Our top-ranked pick is at the top of the list above. Rankings use the ToolHund Score — a blend of features, pricing fit, community sentiment and shipping cadence. Vendors can't pay to move up.
Yes — where a free tier exists it's flagged on each tool card. Sort or filter by pricing on the category page to see only free and freemium options.
We re-check every listed tool at least monthly, and immediately when a tool ships a major pricing or feature change.
Sponsored tools are always labelled and never mixed into unpaid rankings. Read the disclosure and methodology pages for details.