A session is a single 6-stage review run on one topic, started from your dashboard. Continuing or reloading an existing session does not consume a new session credit.

You enter a card when starting your Pro trial. You will not be charged for 7 days. If you cancel before the trial ends, you pay nothing. After 7 days the subscription renews at $9/month until you cancel.

Yes. You can cancel from your Stripe customer portal or by emailing hello@liminalml.com. After canceling, you keep Pro access until the end of your current billing period.

Occasionally. If you have a promotion code (from a partner site, launch promo, or referral), enter it on the Stripe checkout page. Students and open-source contributors can email hello@liminalml.com.

Your profile context, STAR stories, and session history are preserved indefinitely. You'll simply be capped at 8 sessions and 5 practice-lab reviews per month again starting the next billing cycle.

All major credit and debit cards, plus Apple Pay, Google Pay, and Link, via Stripe Checkout. Stripe never shares your card details with us.

LiminalML is built on Claude via the Anthropic API. Like any LLM it can be confidently wrong — sessions are structured so every derivation step is visible and checkable, and anything load-bearing should be verified against a primary source. The six-stage structure, pacing, and saved sessions around the model are what we build.

Your data is stored in our database with row-level security, so other users can never see it. Session content is sent to Anthropic's API to generate responses; per Anthropic's API terms it is not used to train models, and we never train on your data either. You can delete your account and data anytime. See our Privacy Policy for details.