1,000 minds · September 2026

Jevtown

The end credits.

Starring

1,000

citizens

Farmers, fishers, bakers, guards, healers, thieves and nine more jobs. Every tick, each one was asked what they do next.

Every decision by

Jev · TypeSafe

819,076of Jev's decisions kept in the city's datasettraining/README.md, all three splits
515 milliontokens Jev read, in 24,756 requeststhe spend ledger, 20 Sep 2026 · /study

The first day in public

239,694decisions on the first day in public: 435 ticks, none failed/study, "The first day in public"
0.98 sfor all 1,000 people at once, at the medianREADME.md, the live city run of 18 Sep
$21.64for all of it, and never one rate limitthe spend ledger, 20 Sep 2026 · /study

Players who claimed a citizen

and 505 visits to this site

jevtown.com: Vercel Analytics for the first week (unique visitors), then the site's own daily count; counted conservatively

Directed by

elberacasa

Engineered with
Claude, in Claude Code
Art
Ninja Adventure, by Pixel-Boy & AAA (CC0)
Made on
Omarchy

Thank you, TypeSafe.

Jev ran this city from its first tick. Every decision here was drawn from its judgment, and it taught what came next.

The citizens didn't disappear.

They learned.

Jev's decisions trained a model that now runs the city

on one gaming GPU in Caracas.

86.9%same choice as Jev, on a day of the city it never saw (untouched Laya: 32.4%)layatown/docs/MODEL_CARD.md
96.8%follows the city's written rules. Jev: 89.5%bench/results/beyond/results.md
478,971decisions in a 2-hour soak on one RTX 3080 Ti, 0 of 900 ticks skippedbench/results/serving/results.md
~140decisions a second, on that one cardbench/results/serving/results.md
0.86 Whper 1,000 decisions. No fee per decisionbench/results/serving/results.md

Our fine-tune learned the city, not people's words: it screens chat far worse than Jev (73.7% right against 97.4%; Laya as released: 89.5%), so typing is gone. bench/results/beyond/results.md

Model: Laya by Convai Innovations (Apache-2.0), fine-tuned on this city's own decisions.

The End

Next

Layatown Lab.

Change one thing about a village of minds. See exactly what it changes.

Coming soon

Watch the replay Read the study Follow for the launch