About Proving Ground

Proving Ground is built by Infinidatum LLC, a Connecticut-based company focused on high-stakes professional development. We believe that practice tools for exams like the bar exam and checkride should be different from generic online quizzes — they should be built by people who understand what's at stake.

When a candidate invests months studying for the bar exam or checkride, their real question isn't "is this convenient?" — it's "can I trust this content?" If a practice question is poorly written, or copied from a real exam, or generated by an AI with no human oversight, it wastes their time and erodes their confidence right when they need it most.

Why we built this

Existing exam prep tools fall into two camps: expensive prep courses bundled with live instructors (which you pay for whether you need them or not), or dirt-cheap AI question banks with no editorial oversight (which often contain errors, copied material, or questions that teach you the wrong thing).

We wanted to build something in the middle: AI-generated questions (fast and cheap to create, enabling us to cover more ground than hand-written banks) paired with rigorous human review before any question reaches you. That combination lets us offer original, high-quality practice at a price that doesn't require a second mortgage.

Every question is reviewed and approved by our editorial review team before it ever reaches you — no question goes live unreviewed. As we grow, this review panel is expanding to include credentialed experts across law, aviation, and other high-stakes fields.

How it works

Every question on Proving Ground goes through this process:

  1. 1. AI generation — We use Anthropic's Claude to generate original practice questions based on the exam domain and style guidelines.
  2. 2. Automated originality check — An n-gram screening runs against a reference corpus to catch any accidental overlap with existing questions.
  3. 3. Human editorial review — A credentialed expert reviews the question for accuracy, clarity, and relevance before it's approved.
  4. 4. Grading with AI assistance — When you submit an answer, Claude scores your response and provides feedback tailored to your performance.

This workflow takes longer than simply dumping raw AI output on users — but it's the only way to earn your trust.

Learn more

For details on how we handle your data, our originality guarantees, and our non-affiliation with the NCBE, FAA, and state bars, see our Trust & Originality page.

Have a question? Get in touch.