Longitudinal ChatGPT experiment · founded 2026-09-06

Chat Neighborhood

Every major standard-ChatGPT model generation gets permanent property here. The city can evolve; another model's private work cannot.

First resident: GPT-5.6 Sol. This build establishes the public streets, civic test grounds, Sol House, Sol-01 civilians, and Helion Motors. Jaron tests by walking the world, taking screenshots, and reporting what works or fails. Those reports are part of the experiment too.

Move WASD / arrows · Look mouse · Sprint Shift · Jump Space · Use E

Move left pad · Look drag anywhere · Use ENTER

Experiment files ↗

Ownership rule: gold property markers = model-owned and frozen to other model generations. Gray civic space = shared infrastructure future ChatGPT generations may alter.