MEMBERSHIP & COMPUTE //ENTITLEMENT MATRIX
Free vs. Pro
Core practice and daily ranking are free for everyone. Pro membership covers the compute cost of running LLM reasoning pipelines, custom video rendering, and Cloudflare RealtimeKit WebRTC infrastructure.
Baseline Access
Community Member
$0
Ideal for daily habit-building, basic self-assessment, and keeping an unbroken learning streak.
Includes: 10 daily questions, public leaderboard standing, and instant cached AI answers.
Recommended for ML Engineers
Full Compute Tier
Pro Engineer
$19 / month
Unrestricted problem sets, on-demand AI video synthesis, group study call hosting, and streak freeze protections.
Cancel anytime via self-serve Stripe Customer Portal.
| CAPABILITY // SPECIFICATION | FREE | PRO |
|---|---|---|
| Daily practice questions | 10 questions / day | Unlimited (continuous bank) |
| Hard & Extreme problem sets | 2 teaser previews / day | Full access to all ML interview banks |
| AI Tutor text explanations | 5 queries / day | 100 queries / day with KaTeX proofs |
| AI Video explainer synthesis | Cached videos only | 15-20 novel synthesized videos / month |
| Study cohorts & groups | Join public groups | Create cohorts up to 250 engineers |
| Study group video calls | 15-min cap (1:1) | Unlimited call duration + screen sharing |
| Leaderboard telemetry | Daily standing only | All-time history, cohort filters, percentile analytics |
| Streak freeze protection | None | 1 auto-replenishing freeze banked per month |
Transactions processed via 256-bit encrypted Stripe Checkout. No recurring lock-in.