Nasrudin
Pricing

Free to read. Paid to aim.

The corpus is open by principle — built by volunteer compute and free forever. What we charge for is targeted compute: the slices of GA cluster you point at your own conjecture, plus the API that lets you build on top of Nasrudin.

Free
For citing, browsing, and re-verifying. No card.
$0forever
no card required
  • Browse the full verified theorem corpus
  • Read full Lean 4 proofs
  • Download any .lean file & re-verify locally
  • Save up to 50 theorems
  • Cite & share via permalinks
  • 1,000 API requests / day
Team
For research groups: pooled searches, shared library.
$45.60/ month
3 seats included · +$15.20/seat · billed annually
  • Everything in Researcher, per seat
  • 50 targeted searches / month (pooled)
  • 50,000 API requests / day (pooled)
  • Shared library & citation graphs
  • Google / Microsoft sign-in
  • Bulk .lean exports
Institution
For departments and institutes with compliance needs.
$792/ month
10 seats included · +$79.20/seat · billed annually
  • Everything in Team, per seat
  • 200 targeted searches / month (pooled)
  • 250,000 API requests / day (pooled)
  • SAML SSO
  • Audit logs & compliance reporting
  • Dedicated targeted-search compute pool
  • Quarterly office hours
Enterprise
For institutions running their own Nasrudin nodes.
Custom
annual · invoiced
  • Everything in Institution, unlimited seats
  • On-prem worker cluster deployment
  • Private corpus extension (your own axioms)
  • SLA · 99.9%
  • Direct line to engineering
Questions

The usual ones, answered straight.

Is the underlying corpus really free?

Yes. Every verified theorem is browseable, downloadable as a .lean file, and re-verifiable on your own machine without a paid plan. The corpus is built by volunteer worker compute and stays free by design.

What is a "targeted search"?

You provide a conjecture in Lean syntax (or natural language we transcribe). We dedicate a slice of the GA cluster to evolve toward it for up to 24 hours. Paid tiers buy targeted compute aimed at *your* conjecture — the open corpus is never gated.

Can I cancel anytime?

Yes. Self-serve cancel from the billing portal — your plan stays active through the end of the current period.

Are workers paid?

No cash. Workers earn (1) attribution on every theorem they verify, (2) leaderboard rank, and (3) — coming soon — a free Researcher tier when contributing ≥10 hours of verification time per month. Compute donated by workers builds the open corpus; paid tiers buy targeted GA slices pointed at the buyer's own conjecture.

Are you a tool for academics specifically?

No — Nasrudin is for anyone pointing compute at hard problems. Independent researchers, industry R&D, quant teams, and academics with budget all use it the same way. Verified academic email gets 50% off Researcher.