Parastore: Open-source 3D retail simulation with LLM-powered synthetic consumers for product testing
By
KYEONGEOP LIM
Sat out too long. The crust has gone leathery.
Summary
Parastore is an open-source (MIT) 3D retail simulation platform where LLM-powered synthetic consumers physically walk through virtual stores, browse shelves, make purchase decisions, and generate revenue data. Developed by Intellicia, it features 12 behavioral patterns, grammar-constrained actions, randomized context (mood, budget, company), and impulse-buy logic. The simulation has been validated against real POS data with a 0.955 Spearman correlation. Built with Python/FastAPI and React/Three.js, it supports any LLM backend and is designed to help brands test products and messaging without traditional surveys.
Key quotes
· 3 pulledInstead of answering surveys, our synthetic consumers now physically walk through stores.
They browse, pick up items, impulse-buy snacks near the checkout, and generate revenue data — all in a 3D simulation.
We're open-sourcing the entire simulation framework (MIT license) because we believe agent-based behavioral simulation
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