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CFG Eval
QueryEvalsAbout

History

Your recent queries land here.

No history yet. Run a query and it’ll show up here.

Ask the NYC Taxi dataset

Type a question in plain English. GPT-5 writes a grammar-constrained SQL query — a strict whitelist of allowed SQL, so it can't produce anything invalid — then we run it against ClickHouse Cloud and show the table.

New here? How this works explains the grammar and the vocabulary.

Trace

Run a query to see how its answer is produced.

Ask a question and its trace shows up here: each step from generation to execution, how long each took, what it cost in tokens, and the exact SQL that ran — so you can see how an answer was produced, not just what it was.