Pricing
Prompt literacy is a digital-literacy right. The free plan teaches; Pro adds the tools for serious practice.
Prices are provisional while launch costs are measured.
Free
Learn the rubric and fix your prompts.
Free
- 5 analyses a day
- 2 optimisations a day
- Coach mode with Professor Aristo
- All 15 languages
- Last 30 analyses kept
- Library of 20 prompts
- 3 lessons
Pro
7-day free trialPractise seriously: test drives, full library, every lesson.
$10 per month
$96 per year · Save 20% with yearly billing
- Generous fair-use analyses
- Generous fair-use optimisations
- Coach mode with Professor Aristo
- All 15 languages
- Full history
- Unlimited library with versions
- All lessons and drills
- 100 test drives a month on real models
- Priority models
Classroom
Coming soonCohorts, assignments and evidence of practice for teams and classes.
—
- Generous fair-use analyses
- Generous fair-use optimisations
- Coach mode with Professor Aristo
- All 15 languages
- Full history
- Unlimited library with versions
- All lessons and drills
- 100 test drives a month on real models
- Cohort dashboards and evidence export
Questions
- Do I need a credit card for the free plan?
- No. The free plan has no card and no expiry.
- What happens when the trial ends?
- Your Pro features stop unless you subscribe. Your history and library stay within the free plan's limits; nothing is deleted.
- Which models does Aristo use?
- Grading and coaching run on current Claude models. Test drives run on Claude today; other model families are planned.
- Can I cancel?
- Yes, any time, from your account page. You keep Pro until the end of the period you paid for.