Satellite image of the world at night. Lights mark many cities, towns, and roadways.
Semilattice logo with icon depecting overlapping sets.Semilattice logo with icon depecting overlapping sets.

Simulating the human world to advance society

Semilattice builds tools for simulating complex human systems

Spherical shape showing complex, dense matter swirling.

Failure is the norm in human systems

Ninety percent of startups fail, half of marketing spend is wasted, eighty percent of government change efforts fail. The common thread is human systems: organisations, markets, communities, countries. When a project depends on understanding human behaviour, failure is the norm.

Complexity taxes progress

Human systems are complex: behaviour emerges in real-time and cannot be predicted, flooding the system with uncertainty. Beyond very simple processes and very short timeframes, understanding what will happen and why is near-impossible. This places a fundamental limit on our ability to get things done.
Construction site with cranes, people, and lots of materials.Aerial photo of busy streets in a large city.

The human element has held back computational models

Individual humans are complex systems themselves. Their internal biologies, mental processes, and personal histories continuously generate new and emergent feelings, thoughts, emotions, and actions. Computational models of human systems have so far failed to capture this individual-level complexity.

LLMs are human simulators

LLMs learn deep predictive patterns about human behaviour from the largest set of anthropological data ever assembled—the internet. Through the modelling framework of human language, LLMs can generate and simulate any possible human, solving individual-level complexity for computational models of human systems.
Waves of shapes and symbols, implying waves of data.3D image of the whole earth, over Africa, Europea, and the Middle East.

Semilattice is a human world simulation platform

Leveraging LLMs and other AI, our products simulate the human world to make it more understandable and less uncertain. Starting with simulating people answering questions for research purposes, we'll climb the complexity stack towards our vision of a real-time synched human world model: always ready to simulate possible futures for any organisation, market, community, or country.
Spherical shape showing complex, dense matter swirling.

Failure is the norm in human systems

Ninety percent of startups fail, half of marketing spend is wasted, eighty percent of government change efforts fail. The common thread is human systems: organisations, markets, communities, countries. When a project depends on understanding human behaviour, failure is the norm.
Construction site with cranes, people, and lots of materials.

Complexity taxes progress

Human systems are complex: behaviour emerges in real-time and cannot be predicted, flooding the system with uncertainty. Beyond very simple processes and very short timeframes, understanding what will happen and why is near-impossible. This places a fundamental limit on our ability to get things done.
Aerial photo of busy streets in a large city.

The human element has held back computational models

Individual humans are complex systems themselves. Their internal biologies, mental processes, and personal histories continuously generate new and emergent feelings, thoughts, emotions, and actions. Computational models of human systems have so far failed to capture this individual-level complexity.
Waves of shapes and symbols, implying waves of data.

LLMs are human simulators

LLMs learn deep predictive patterns about human behaviour from the largest set of anthropological data ever assembled—the internet. Through the modelling framework of human language, LLMs can generate and simulate any possible human, solving individual-level complexity for computational models of human systems.
3D image of the whole earth, over Africa, Europea, and the Middle East.

Semilattice is a human world simulation platform

Leveraging LLMs and other AI, our products simulate the human world to make it more understandable and less uncertain. Starting with simulating people answering questions for research purposes, we'll climb the complexity stack towards our vision of a real-time synched human world model: always ready to simulate possible futures for any organisation, market, community, or country.
FOUNDERS' LETTER

Humans + Time

Semilattice believes significant advances in decision-making, management, and governance are possible, but only if we can accurately model the complex human systems which run the world.Read the blog post →
TEAM

Help us simulate the human world

Semilattice is founded by Joseph Wright (Ex-Google, Stripe, Figma) and Fabian Teichmueller (Ex-Google, Kaluza) with over 30 years combined product, engineering, marketing, and commercial experience.
Profile picture of Joseph Wright

Joseph Wright

Co-Founder, Product & Engineering
Profile picture of Fabian Teichmueller

Fabian Teichmueller

Co-Founder, Commercial & Operations

Open Positions

We are hiring founding engineers to join us on our mission to simulate the human world. We offer above-market equity and work in-person from an office in central London.
Founding Full-Stack Software EngineerLondon, UK
Founding Product EngineerLondon, UK
Founding ML EngineerLondon, UK