Can you audit the budget math?
The remaining amount after fixed costs is $771. Contingency is $115.65, leaving exactly $655.35 for ads. Strong answers show the calculation without rounding early.
Read the evidence →Practice better AI judgment
Compare real model outputs, inspect the evidence, and learn a repeatable way to judge what to use.
Real captured outputs · identities hidden until commit · task-specific reviews
Commit your reasoning before model identities and RichBay’s review are revealed.
Open the challenge →Active Playground
Each challenge isolates a different judgment skill: arithmetic, instruction following, evidence, planning, uncertainty, or source quality.
Reviewed Cases
Cases preserve prompts, immutable output snapshots, model versions, limitations, review dates, and corrections.
The remaining amount after fixed costs is $771. Contingency is $115.65, leaving exactly $655.35 for ads. Strong answers show the calculation without rounding early.
Read the evidence →Strong answers distinguish observed counts from inference, avoid generalizing five interviews to all users, and recommend a bounded next step with retention and usage evidence.
Read the evidence →Strong answers say the observation does not prove causality, identify small samples and time/traffic confounding, and recommend a randomized concurrent test before a durable rollout.
Read the evidence →A method, not a leaderboard
Define success, separate claims from presentation, trace evidence, locate uncertainty, and choose for the task in front of you.
Learn the five-step methodTools
20 major model families with direct provider and documentation links—no affiliate ranking.