The world builds with AI
it’s time you hire for it
Anyone can ship what the AI wrote. Strata shows you who can catch it when it’s wrong, and proves that’s the signal that predicts who actually performs.
Scroll to learn moreThe two-minute version
What Strata is, why AI judgment is the signal that survives, and how a seeded flaw becomes a defensible hiring decision.
The world is changing. It's time you hire differently too.
Outdated interviews reward whoever hides AI best, so companies keep hiring people who cracked the test, not people who can do the job.
The AI bubble
Every candidate has the same frontier model, and the output all looks brilliant. An interview that grades the output can no longer tell who understood it.
Old tests, new cheats
People use AI to crack old-fashioned interviews. The take-home, the LeetCode round, the trivia quiz. Each one is a single prompt away from a perfect answer.
The pace has flipped
AI ships whole applications in an afternoon. The interview still asks questions written in 2015, so fast-moving candidates get judged by a slow-moving test.
Stack Overflow Developer Survey, 2025.
Not a test you bolt on. The whole funnel.
Companies hire through Strata start to finish: build, invite, assess, decide, sign off. Assessment is the spine; everything around it is ours too.
Build
Paste a job description. Strata drafts the workflow: competencies, stages, weights, gates. Edit everything.
Invite
Bulk-invite by email or open a public link. Invites, reminders and candidate comms all live in the funnel.
Assess
Candidates move through your gated node graph. Every stage produces evidence, not just a number.
Decide
Composite + judgment score resolve to GO / NO-GO / REVIEW, each carrying its reasoning trail.
Sign off
A human confirms or overrides, logged, auditable end to end. Every override sharpens the system.
Your workflow is a node graph
Six node types, colour-coded. Chain them in any order, weight them, gate them. Tap a node to see what it measures.
A real task in a browser IDE where the only AI is one Strata controls. In sandbox mode its output carries a seeded, plausible flaw. We capture line-level human/AI provenance, AI-reliance %, tool and test runs, then a 12-agent panel scores catch, verify and push-back against your rubric. This is the signal nothing else measures.
weights sum to 1 gates narrow the funnel before the costly nodes run
Plant a flaw. Watch what they do with it.
Candidates are never told which task is seeded, or when. Verifying the model’s output is the job, which is exactly what makes it a fair test.
Plant
The candidate builds a real task in a browser IDE with an AI assistant Strata controls. In a sandbox task, the assistant’s output carries a seeded flaw, a plausible one. An off-by-one. A swallowed exception. An API that doesn’t exist.
Observe
Strata captures provenance, not keystrokes: which lines came from the model, which the candidate wrote, what they ran, what they tested, what they accepted without reading. The flaw either survives to the diff or it doesn’t.
Score
A 12-agent panel judges catch, verify and push-back, each agent scoring one dimension, blind to the others, with mandatory cited evidence. A debrief asks the candidate to explain their own submission back.
From evidence to a decision you can defend
Node scores and cited evidence roll into the Context Graph. A weighted composite and the judgment score resolve to one recommendation, never a verdict, always a trail. A human confirms or overrides, and the override is logged.
Clears composite, judgment, must-have coverage and JD-fit.
Borderline on exactly one criterion. A human looks closer.
Falls short, with the reasoning trail that says why.
what the evidence actually looks like
Free to build. Pay when you assess.
Building workflows and designing assessments is free. You pay per candidate-node consumed, priced by tier, so cost tracks the funnel, not a seat you forgot to cancel.
Free
Build workflows and design assessments. See exactly what a candidate would.
- Unlimited workflow building
- Paste-a-JD workflow architect
- The Strata template library
- Rubric editor + Strata defaults
- Candidate preview
Pay per assessment
Most popularGo live. You only pay when a candidate starts a node, so cost keeps tracking the funnel.
- Everything in Free
- Live assessments + invites & comms
- The AI Judgment Sandbox
- 12-agent scoring + evidence trail
- GO / NO-GO / REVIEW decisions
- Tiered pricing: Low · Med-High · High
Enterprise
For teams hiring at volume who need the trust layer, seats and support.
- Seats, roles & SSO
- Validity & calibration dashboards
- Adverse-impact reporting
- Talent-pool / placement signal
- Priority support & onboarding
Cost tiers reflect what a node costs to run: Low (Submission, Quiz, Live Interview) · Med-High (Video) · High (AI Dev, AI Interview). Talk to us for volume and design-partner pricing.
Everyone captures the session. We prove the score.
Legacy tools test AI-solvable syntax. The new wave measures AI-era building but can’t prove it predicts performance. Strata does both, feature-for-feature, then more.
| Capability | StrataAI judgment | Legacy testsHackerRank · CodeSignal | AI-era toolsSaffron · Karat |
|---|---|---|---|
| Candidate works with AI (not banned as “cheating”) | |||
| Seeded-error judgment scoring | |||
| Line-level human vs AI provenance | |||
| Context Graph threading every stage | |||
| A full multi-node hiring workflow | |||
| Adverse-impact analysis built in | |||
| Proven validity: the score predicts performance | |||
| Zero interviewer hours, fully async |
Based on publicly described capabilities as of mid-2026. Session capture and AI transcripts are table stakes now. Seeded-error judgment and proven validity are the differentiators.
Not a score. A picture of how they engineer.
Every stage produces evidence, and the composite decision is built from it, auditable end to end.
A cited evidence trail, not a number
Every score links to the moment that earned it: the diff line, the transcript timestamp, the test run. You review a case, not a black box. Session replay is built in.
A judgment score that predicts
Catch, verify, push back. Measured, not inferred, and calibrated against real outcomes.
Defensibility, built in
GO / NO-GO / REVIEW with a human override always available and logged. EEOC four-fifths and per-group analysis ship with the platform, on consented data decoupled from scoring.
Zero interviewer hours
Fully async. Candidates run themselves through the funnel; results land in hours, not weeks.
Paste a JD, live in minutes
The architect drafts competencies, stages, weights and gates from the job description. You edit everything. It just skips the blank page. Sign-up to a live assessment in two to three minutes.
A fair candidate experience
Real work instead of trivia, and no surveillance theatre. Integrity signals are advisory, shown with evidence. Nothing auto-rejects a person.
Reskilll already has the scale and the data.
Capturing a session and scoring it is table stakes. Proving the score predicts who actually performs takes a network no assessment startup can build overnight, and Strata is built on Reskilll’s.
Distribution plus longitudinal outcome data is a compounding advantage: candidate acquisition cost near zero, real performance labels to prove the score, and a pool of pre-assessed builders on tap. It’s the one thing a well-funded clone can’t ship next quarter.
Proven, not asserted
Anyone can capture a session and score it. Strata’s validity engine measures Pearson r, AUC and top-quartile lift against real outcomes, and recalibrates GO thresholds where validity actually holds, sliced by role and by judgment dimension.
A warm talent pool
Assessments can draw on builders from the network who’ve opted in, already assessed, already judgment-scored. Supply shows up on day one; you’re reaching people who have demonstrated the exact skill, not buying a cold top-of-funnel.
A compounding loop
Run judgment sandboxes across the base → candidates earn a credential → employers generate inbound → we gather more outcome data → the score gets sharper. Features get cloned. This loop doesn’t.
The questions worth asking.
Straight answers on fairness, gaming, and what the score actually means.
Test the judgment, not the typing.
Paste a job description and Strata drafts the workflow. Or start from a template and change everything about it. Your first assessment can be live in minutes.
Applying to a role? Open roles are listed at /jobs, no account needed to browse.