demoauthor demo
Subway Surfers at parallel scale
Jev chooses game actions and is shown across many concurrent runs.
FAST LOOPS ON STRUCTURED STATE
Games & simulations
Real-time loops where the model picks an action many times a second from a small, fixed set.
Structured game state in, action out: Doom, Mario, chess, racing, drones and driving sims.
26 entries
replicasource-backed
NanoJev
A 0.6B Qwen-based open implementation of parallel typed decisions, with training and evaluation code.
roundupcommentary
The early Jev projects thread
A thread connects browser, database, email, QA, drawing, games and low-level GPU experiments.
demosource-backed
Jev plays Super Mario Bros from telemetry
Jev picks NES controller inputs from object-centric JSON telemetry rather than screenshots, choosing among seven legal actions and logging latency and probabilities per decision.
demosource-backed
jev-drone: quadrotor obstacle course in MuJoCo
A layered controller: classical vision at 15 Hz, a 50 Hz reflex safety layer, and Jev at about 2.5 Hz choosing tactical maneuvers from JSON scene descriptions.
demoauthor demo
Driving-simulation demo with Jev
A driving simulator where Jev picks the next control action; the author frames it as rebuilding self-driving in under an hour.
demoauthor demo
Request router that picks the serving LLM
A router where Jev decides which LLM should serve each incoming request; the same author hosts a Pac-Man page where Jev chooses a direction at every junction.
replicasource-backed
system-one: batched single-token choice inference
Constrains token selection to choice indices so any open LLM answers many questions in one pass; includes Doom and Wikipedia-racing demos on Qwen models.
demoauthor demo
ViZDoom agent with two decision channels
A Doom agent with separate Jev channels for navigation (5 decisions per second) and combat (12 per second).
demoauthor demo
Jev vs Jev 3D chess
3D chess where the same model plays both sides; the viewer can watch or take over one side.
demoauthor demo
StarCraft Brood War over MCP with Jev
Brood War compiled to WASM and exposed as an MCP server with Jev playing; the author jokes it still loses to a Zerg rush.
demoauthor demo
Free-form player intent to typed MMORPG actions
A text MMORPG maps player intent to typed server actions with Jev, replacing a slower LLM step.
demoauthor demo
Hollow Creek: villagers judged by Jev
A narrative game where each villager decides tick by tick how to treat the player, with a view that shows what Jev read and answered; 21 tracked outcomes and per-interaction cost counters.
demoauthor demo
Companion: a 3D robot on one call per turn
A 3D robot companion driven by one TypeSafe call per turn answering nine typed questions at once, with confidence gating to act, ask or do nothing; no text generation.
benchmarkauthor demo
jevscape: RuneScape benchmark harness for Jev
Adapts the RuneBench RuneScape agent benchmark to Jev with about fifty bounded actions, a tick-mode controller and a live dashboard.
demoauthor demo
Last Exit: a checkpoint game judged by Jev
A text game where you talk your way past a border inspector whose actions are chosen by Jev from your typed replies; dialogue and consequences are authored game code, Jev only decides.
demoauthor demo
Jev solves the cube
Scramble a Rubik's cube and watch Jev judge and solve it live, with difficulty tiers, XP and token-metered runs; labelled experimental and fan-made.
demoauthor demo
Jev Plays: tic-tac-toe and Connect Four
Tic-tac-toe and Connect Four against Jev, where the model picks the move and the code keeps the rules.
demoauthor demo
Beat Jev 2 It: a spam-classification race
A small game where you race Jev at classifying a message as spam, built to show its latency.
demoauthor demo
Jev drives ConsoleChaosRacing
Jev hooked to a racing game through a Python API and a display UI; the author describes a trick of buying thinking time and notes the course is fixed.
demoauthor demo
Self-driving simulation with typed decisions
A self-driving simulation built to test Jev: structured sensor state in, typed decisions out (steer, brake, overtake, pedestrians, speed limits); the prompt is published.
demoauthor demo
Jev as a pixel-art generator
Turns Jev into a pixel-art generator by asking 256 multiple-choice questions, one per pixel, plus refinement passes.
demosource-backed
minecraft-agent: Astra planner, Jev controller
A Minecraft agent that plans with Astra and lets Jev control step-by-step actions, with native recording, tested routes and run verification; the Jev decision rules live in models.mjs.
demosource-backed
JevChess: Jev vs LLMs, Stockfish or you
A one-page web app where Jev plays chess against any OpenRouter LLM, Stockfish, or a human, showing live moves, Jev's move probabilities, saved games and win rates.
replicasource-backed
ChessJev: a System One model for chess
Not Jev but Jev-shaped: a small decision model trained specifically for chess moves, built in the launch-week spirit.
demosource-backed
OneVOneJev: a 1v1 quickscope arena on Three.js
A browser 1v1 quickscope arena built with Three.js where Jev plays the opponent's decisions in real time.