Start with behaviour
Purchases, choices, clicks, churn — the decision trail your customers already leave. Nothing new to collect, nothing invasive to wear.
Nexarch Labs builds NEXY — cognitive digital twins that decode how people decide, calibrated on biometric and behavioral signals, and deployed through specialized AI agents.
NEXY turns measurable human signals into predictive models of decision-making — from risk appetite and overconfidence to stress response and susceptibility to manipulation.
Literature-grounded cognitive task batteries paired with biometric signals capture how a person actually decides under risk, pressure, and persuasion — not how they say they decide.
Signals are fused into a calibrated computational replica of the individual's decision profile across eight scientifically-defined cognitive domains.
Specialized AI agents query the twins to forecast decisions, stress-test scenarios, and flag cognitive vulnerabilities — in defense, finance, and consumer settings.
You don’t start with electrodes. You start with the behavioural data your business already produces — and climb from there.
Purchases, choices, clicks, churn — the decision trail your customers already leave. Nothing new to collect, nothing invasive to wear.
From that data we build a behavioural twin and let it walk the decision paths ahead — what happens if you change the price, the product, the message — before you commit to any of it.
When you want more than behaviour, our lab adds the signals underneath it — EEG, eye-tracking and biometrics, fused into one model of how attention, load and risk actually move.
The full twin runs ~10,000 simulated neural paths through your scenario and returns the ones that matter — a clear read on how your strategy should adapt, and why.
One open place to learn — and two flagship twin products, each built on the one before it.
Free foundations in decision & cognitive neuroscience and AI — a full, open course. Start with how your own mind decides, then bring it to your organisation.
NEXY Corporate Training — the Academy taken into your company: focused, applied training in cognitive & decision neuroscience and AI, built around the decisions your teams actually make. Enquire
Your data. Your audience.
We build a simulated audience from your own customer data, so every answer reflects the people who actually buy from you.
We take your existing research — surveys, interviews, CRM, focus groups — and build an audience that mirrors your real customer segments.
Type your question straight into the platform. No survey design, no panel recruitment, no waiting.
Research-quality insight in seconds.
Follow up on any answer. Keep asking until you have what you need.
Where behaviour meets the brain.
Your behavioural twin tells you what customers are likely to do. The cognitive twin tells you why — and how your strategy should adapt. We start from your existing customer data and augment it with validated cognitive-neuroscience research — and, where available, multimodal signals (EEG, eye-tracking, biometrics) — to ground the simulation in how people actually attend, feel and decide.
Start from your behavioural twin — your data, your audience.
Calibrate it with validated cognitive-neuroscience models of attention, cognitive load, emotion and decision-making.
Simulate thousands of decision paths to reveal how to adapt pricing, product, messaging and strategy — ultra-tailored forecasting a text-only model can’t reach.
Built directly on the behavioural layer — validated, not just plausible.
There is a layer beneath everything on this page. We have been building it quietly for a long time.
It is not a feature, and it is not an upgrade. When it arrives, it will change what the rest of this site means.
European-built. Sovereign by design. Named for what it does.
Request early accessThe same cognitive twin engine — hardened for security, productised for commercial markets. Pick a side, then explore the capabilities.
Detect and blunt cognitive attacks on people and populations.
Select, train and optimise human performance from measured cognition.
Markets move when people decide — we model the people.
Test on replicas before you spend on reality.
Neuroscience for the works that move people.
Our task batteries build on decades of peer-reviewed behavioral science — established experimental paradigms, not ad-hoc quizzes.
Behavior, physiology, and self-report anchored against each other, so the twin reflects what people do — not just what they report.
EU-built deep tech serving both security and commercial markets, designed for data sovereignty and responsible deployment.
Provider-agnostic multi-agent AI stack purpose-built for cognitive modeling — no off-the-shelf wrappers.
From controlled experiments to operational environments: the same models, hardened for real-world signal quality.
Cognitive data is sensitive by definition. Consent, minimization, and auditability are designed in from day one.
Whether you're a defense innovation programme, an investor, a research partner, or an enterprise exploring cognitive twins — we'd like to hear from you.