About the Graphite Lab

SAT prep, engineered for precision and trust.

We combine AI diagnostics with human-audited pedagogy to deliver practice that feels intentional, transparent, and effective for every student.

Students served

48,000+

Since launch

Avg. score lift

+148

After 6 weeks

AI sets generated

1.3M

Adaptive & upload

Content accuracy

97.4%

Human-audited

Mission

Make elite prep accessible and auditable.

We believe every learner deserves transparent, high-quality prep—regardless of budget or geography. AI gives scale; humans ensure rigor and safety.

How we work

  • • AI drafts sets; human reviewers gatekeep accuracy and fairness.
  • • Kill-switches and audit logs for generation, uploads, and payments.
  • • Weekly score-lift reviews with educator panel; regressions blocked.

Pillars

What makes us different

See generator

Predictive diagnostics

A 15-minute diagnostic maps timing, accuracy, and concept gaps—so every set is purposeful.

Precision practice

Micro-drills target weakest subskills; full mocks project scores with pacing guidance.

Verified pedagogy

Former admissions officers and SAT leads review our rubrics, explanations, and scaffolds.

Human + AI quality loop

LLM generation is filtered, flagged, and re-ranked by humans before it reaches students.

Culture

How we build

Join the team

Outcomes first

Every release ships with measurable score-lift hypotheses and tracked lift.

Transparency

Clear limits, visible status, and audit logs across generation, billing, and content.

Accessibility

Free diagnostics, guest credits, and educator programs to level the playing field.

Start today

Generate your first SAT set—free diagnostic in 15 minutes.

No credit card. See pacing, accuracy, and skill-map instantly.

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