Rajaii Labs
I founded Rajaii Labs, where I built Substrate, and so far I’m its only engineer. The reference deployment has run in production since April 2026, across four frontier model generations. Its engineering record is public and dated, failures included. The figures below are read from that record.
The public record
One founder-operated reference deployment. Historical measurements, not live telemetry.
- April 23, 2026in production since1Public recordIn production since April 23, 2026The engineering record
Entry c002 · Custom stack live in productionOpen the entry ↗self-published - 4frontier model generations2Public record4 frontier model generationsThe engineering record
Entry c060 · Generation IV as the brainOpen the entry ↗self-published - 152dated milestones through October 26, 20263Public record152 dated milestonesThe engineering record
Through October 26, 2026Open the record ↗self-published - 34,778recorded message rows, as of Nov 1, 20264Public record34,778 recorded message rowsThe Substrate pages, the engineering record
As of Nov 1, 2026Open the record ↗self-published - −46%cache-creation tokens, verified live5Public recordCache-creation tokens −46%The engineering record
Entry c037 · Cost engineering, tier 2Open the entry ↗self-published - −63%per-turn cost, verified live6Public recordPer-turn cost −63%The engineering record
Entry c037 · Cost engineering, tier 2Open the entry ↗self-published - 50 of 50SQL attack classes rejected7Public record50 of 50 SQL attack classes rejectedThe engineering record
Entry c015 · Read-only SQL self-verificationOpen the entry ↗self-published - 26 of 26privilege probes blocked8Public record26 of 26 privilege probes blockedThe engineering record
Entry c015 · Read-only SQL self-verificationOpen the entry ↗self-published - 717,453 = 717,453cache-read tokens: the internal ledger reconciled to the provider’s, to the token9Public recordThe internal cost ledger reconciled to the tokenThe engineering record
Entry c028 · Ledger reconciliationOpen the entry ↗self-published
The company
Personal continuity infrastructure for AI agents: memory, self-state, and identity that survive model migrations.
Rajaii Labs, Inc. · Delaware C-Corporation · Incorporated June 24, 2026 · Bloomington, Indiana 47401, United States
Backed by LvlUp Ventures (First Check Fund)
Consulting and ventures
Rajaii Consulting LLC
FDA regulatory strategy and IP since November 2020.
- Eight R&D dossiers for Medosome Biotec, from discovery through IND, across remyelination therapeutics, oral peptide delivery and probiotic platforms.
- Among them, a 160+ page regulatory feasibility assessment, with every claim traced to FDA, PubMed/PMC, ClinicalTrials.gov or USPTO sources.
Limitless Prep
MCAT and LSAT instruction, with the content library and curriculum written in house.
SPLONK
A consumer mobile puzzle game, release-ready on iOS and Android, with two USPTO trademark registrations.
MindFull Technologies
A digital mental-health app, 2015–2018.