Personality layer for AI to actually know you

Synthius is a security-first personal AI platform, built around advanced encryption and precise control over access to your personal memory.

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Science
validated
Personality benchmarks ↗
AI memory
leader
AI-native benchmarks ↗
21.8ms
Retrieval time
~5×
Token reduction
Our vision

A digital self that stays yours.

As AI begins to plan, choose and act, it needs a deeper understanding of the person it serves. We’re building a user-owned personality layer that carries your history, values and preferences across applications and develops as you do.

Personal continuity across applications

Your personality layer

A record you can understand and refine.

Life historyValuesRelationshipsPreferences
Yours to inspect, correct and share.
01

A learning app

Your knowledge and learning history.

02

A travel planner

The preferences behind a good trip.

03

Your AI assistant

The priorities and people that matter.

Apps receive permitted context. What they learn can return with evidence for you to inspect.
01

Understand your life over time.

Keep experiences, relationships and turning points connected, so you can revisit decisions, notice patterns and refine the picture as your life changes.

Why personal memory needs a different architecture ↗
02

Carry that understanding into the next app.

A new tutor could build on your learning history. A travel planner could use your routines. With permission, useful discoveries could return to the same personal layer for review.

Bring Your Own Human ↗
03

Keep control as agents act.

Choose which memory domains an app can read or update. Inspect changes, correct the record and revoke a connection when you want. Your continuity stays with you as services and AI providers change.

In Defense of Personal Memory Portability ↗
How memory works

How Synthius builds personal memory.

Conversations, notes and documents become an evolving model of a person. Synthius keeps the life context and source references behind a memory, then retrieves relevant information when it’s needed.

A memory you can inspect and correct.

Explorer and Memory Trail show the records and their changes. Separate app permissions control which domains can be read or updated.

Team

A team at the intersection of neuroscience and AI. We spent 10+ years researching how the human brain encodes, stores, and retrieves memory — then engineered the same principles into a system that works.

Andrew Kislov

Andrew Kislov

Co-founder, CEO
500 Startups alum, PhD in Neurocognitive Sciences

PhD in Neurocognitive Sciences. 10 years studying the brain through fMRI and EEG. His research focuses on the neurobiology of decision making, using fMRI and EEG to predict behavior at the population level from neural signals. His work has been published in Q1 journals.

Andrew founded and led Emonomy, a US-based MarTech startup that connects media spend to brand outcomes before budgets are committed. Under his leadership, Emonomy:

  • Generated revenue across 20 countries, including the USA, Mexico, Singapore and the Netherlands
  • Worked with 40+ global brands, including Unilever, Toyota, P&G, Nestlé, Honda, Citi, Subaru, and Pandora
  • Secured investment from 500 Global, a top-2 early-stage VC worldwide

Founded a non-profit philosophical club with chapters in Yerevan, Berlin, Barcelona, and Belgrade.

LinkedIn →
Artem Gadzhiev

Artem Gadzhiev

Co-founder, CTO
Imperial alum, 15+ years building AI at scale

Global Master of Public Health (longevity & personalized health) from Imperial College London.

Former Director of Product & Technology at one of Europe's largest banks, where he ran the back office of Global Markets — AI-driven trading, automation at scale, reliability and process optimization, and a company-wide AI enablement program. Shipped 15+ AI, fintech, and Web3 products end-to-end:

  • Led cross-functional teams of up to 300
  • Drove 2,000% YoY platform adoption on a unified AI roadmap
  • Cut manual compliance oversight by 60% with LLM workflow automation

MSc CS (Machine Learning) and BSc Econ & CS from MSU. 20+ years of independent research in neuroscience and human biology.

Founded 3 startups in AI + Web3 space in the past 3 years.

LinkedIn →