What's new
What we have shipped recently. We read every report, and when one turns into a change it shows up here.
Report an issue, and track it
You can flag a bug or a wrong problem from anywhere in the app. Every report you send now lives under My Reports with its status, and we email you when something you flagged is fixed.
Submission history and saved problems
Submitting is now a deliberate step, separate from running, and every submission is kept so you can see what you tried. Star any problem to save it, and group saves into named lists for focused prep.
SQL practice in the browser
Write and run SQL against real datasets without leaving the page, see the result graded against the question, and read an editorial that explains not just a correct query but a good one.
Profiles, the leaderboard, and the Guild
Your profile is a living picture of what you can do: badges and titles from the Guild of Modelers today, with competitive ratings and strengths opening when answer-protected, server-verified challenges can prove stronger work and breadth without weaker additions pulling you down.
The modeling workspace
Design on an interactive canvas where the schema is the source of truth and the SQL, lifecycle, and storage stay in step with it, so you can see what one modeling decision does to the whole pipeline.