Pricing

One price. $9.

It buys the whole library and a course built on any topic you choose. Monthly by default; one-time if you would rather just take the 30 days.

Best value
$9 / month

Monthly

  • Every public course (9 today), now and future
  • A new course credit every month
  • At least 10 new public courses a month, guaranteed
  • Points, streaks, badges, certificates, leaderboard
  • Cancel anytime; what you built stays yours
Join for $9
Just this month
$9 once

30 days

  • Every public course for 30 days
  • One course credit, yours forever
  • Same points, badges, and certificates
  • Nothing to cancel
Get 30 days

Questions

What is a course credit?

One build of any topic you type in: all 5 parts, ready in a few minutes, yours forever even if you stop paying. Your first $9 includes one; monthly members get another every month. Extra builds are $10.

Can I keep a course I build to myself?

Yes. Courses you build join the library by default, which is how the library grows for everyone. Tick "keep it private" when you build for a $20 add-on, or make one private later for $20.

Is there a free option?

Three courses are free every week for everyone, no payment needed. A free sign-in saves your progress on them.

What if a build fails?

Some topics cannot be built (unsafe, nonsensical, or not a learnable topic). Your credit comes back, or if you paid for the build you are refunded in full.

Are the courses written by people?

They are generated by a language model from a fixed set of instructions and stored as written. They can contain mistakes; verify anything important. Taking a course never uses a live model, which is why it is fast and why the whole library costs $9.