Projects built with Jev

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A city on a whaleJev x GPT-6 Astra x H3 Max I created a complex decision making game with Astra. It is about keeping the city on a whale alive with decisions. - GPT 6 Astra designed the world - Jev chose the actions - H3 Max Turbo on fal turned one decision from each round into video All ofgokaygokay

OpenCode plays TetrisJev + OpenCode + Browser Harness + Sanbox = 🔥 Watch how OpenCode + browser harness visit a tetris game website, read the control instructions, use gpt-6 to build a game controller for Jev model, and then hand off to play the game. This is all a single shot prompt with noTanay Soni

The tactical sentinelI built a game were you play against a sentinel in two modes: 1. Default: Sentinel runs a fixed chain of if/else rules. It follows every one of them and still wanders the map looking for me. 2. JEV Live: hands the Sentinel's tactical call to JEV. -> It went and covered the exit.Adi

Jev plays pinballjev is good at pinballmayank

A dogfighting experimentfirst attempt at getting jev to dogfight, it kinda sucks, will keep experimentinghanz

A puzzle-solving playground@typesafeai @CompleteSkeptic lol Jev is fun got it to solve a bunch of games at scale, Sudoku took a bit of time thoughAshkan

Fly vs. Jev chessEver wondered if a fly is better at chess than jev? Me neither. Anyways, watch a fly face off against jev at chessJoe Cowles

Jev plays SindicatOne of our testers decided to let JEV AI model play Sindicat for him. Here are the results. 👀 It managed to complete the entire tutorial in around 16 minutes. Here’s the proof, video sped up for your viewing pleasure. 🐈‍⬛Playda

Jev vs. GLM at chessJev vs GLM 5.3 at chess! Results: ◾ GLM 5.3 won by checkmate in 29 moves ◾ Jev: ~0.3s and <$0.0001 per move ◾ GLM 5.3: ~5.8s and ~$0.008 per move ◾ The whole game cost 24 cents My main takeaway is that it's often useful to use each one to their strengths: ◾ Fast,Hassan

A chaotic kitchen simulationI built a chaotic kitchen to stress-test Jev. 4 chefs. Expiring orders. Competing priorities. The occasional fire. In an early live test, Jev gave firefighting a 66% probability over finishing the order at 33%, then returned its move in ~200ms warm. V1 is live. Try to breakJollyRojak

Jev plays Mariothe obligatory AI plays Mario, Jev version Jev is TypeSafe's System One model. u send it state and a typed question, it sends back a choice with probabilities. so every move here is one question: run, hop, jump, wait or go back it reads the game from NES memory, no pixels. 193Zach A

Connect Four decisionsjev playing connect four completely pointless but i am still into it @typesafeaiDeepam Goyal

Escaping a mazeCan Jev escape a maze? Turns out it depends how you write the map. When given as a 2D grid, “wall above?” is worse than chance. “Wall to the right?” is 99.9%. Rotate the page and every side becomes 1.00. It isn’t seeing the grid. It’s reading the next character. So I gaveJUUN

Jev flies a Kerbal rocketWe appear to be in our Jev era. Gareth, our AI Architect, did the obvious thing: gave @typesafeai's Jev control of a rocket in Kerbal Space Program. TL;DR: this is very cool. His learnings in the comments. @hackgoofer, @CompleteSkeptic, @EGafni — is this as good as Doom?TextLayer

A maze-solving testbedMy Jev maze solving experiments are not going well Poor guy is more lost than the guy from Memento without his tattoos and polaroids 🙈Dan Manastireanu

Jev plays BalatroJev from @typesafeai plays @BalatroGame. Every hand it sees the cards, jokers, and blind, then picks play or discard in ~200–500ms. After the ante, it shops too. A full run costs less than a cent.Juris

A Tetris placement pickerTypeSafe's Jev plays Tetris better than me!! We hooked it up to a Tetris game. Every piece, it looks at the board and all the spots the piece could land, and picks one in about half a second. A whole game cost us less than half a cent. Their price is $0.042 per million tokensZiwen

A detective escape roomgot access to jev and built a little detective escape room 🕵️‍♂️ your passport is missing. three passengers are lying. you connect the clues in your own words, and jev checks whether your argument holds up.hunter

Nuclear hot potatoi put 7 jevs in a real-time multiplayer game of nuclear hot potato one of them is holding a bomb and if they don’t pass it in time, it explodes each jev reads the live game state and decides who to chase, avoid and move toward, with reactions between 100–200msYoussef 🚜

Tetris with live probabilitiesI made the TypeSafe Jev model play Tetris. It's really, really good at it. It gets 5 candidate placements and returns a probability for each. 172 pieces, 66 lines, still going. One decision per piece, 285ms each. The whole right side is what it's thinking, live.cskadarla

A poker model tournamentCan Jev play poker? Yes Can Jev beat OpenAI? Maybe Here is a tournament between Jev, Terra and AstraDan Manastireanu

Big Two with Jev botsDusted off an old side project and implemented Jev bots in my Big Two game! Solo mode against bots are actually fun now.@chiubaca

Switch between manual and AI playHad some fun taking Jev from @typesafeai for a spin, switching seamlessly between manual and AI-driven gameplay. It’s clocking 2–3 calls/sec at 60 FPS, with ~150ms avg latency. The most interesting part wasn’t the speed, though. It was distilling the game into the variables,Adrián Mato 🐙

A Tetris agentok, I got Jev to play Tetris and this is cool asfMarcelo Mendes

Field CommanderThis is Field Commander, Browser RTS. Multiplayer is powered by @spacetimedb, and introducing Jev, An AI opponent powered by @typesafeai I went ahead and put Jev against Jev just for fun. Opening access soon for free! Very early stages but I am having a blast!Konner

Connect Four on OmarchyWe put Jev inside OmarchyLinux @dhh to play Connect Four. It reads the board, chooses a move, watches the opponent respond, then Hermes reviews the result and tries again. 6,499 model tokens. Cost: $0.00022113. This is what structured state + real-time decision loops lookAria

A real-time decision stress testI put @typesafeai's Jev in a game where the clock doesn't wait for the model. 176 decisions, 1 non-fatal mismatch against a perfect-information oracle. All 8 recorded deaths (of 9 lives across 1.5x/2x/3x speed) were late answers, not wrong ones. That is exactly the profile aShengHui Wang

League of Legends win probabilitiesgot @typesafeai's jev to build a League of Legends win-probability overlay in real-time every second, the model receives the full game state in and answers three questions: will blue win, who has the biggest impact and is the leading team about to throw. works retroactively orfilipe

Roulette Wars player profilingJev (@typesafeai) is great for profiling players! 👀 It watches you play Roulette Wars live, scores your risk-taking, and tags you as one of 4 archetypes (fortress / gambler / tactician / wildcard). We can then check if balance changes shift behaviorNico Saraintaris

Pokémon Showdown battlesI got access to Jev from TypeSafe, so I made it play Pokémon Showdown. It can play up to 5 battles in parallel, making every move and switch itself. 41 completed games. 2.6M+ input tokens. ~$0.11 in Jev inference.Dan

Pokémon shiny huntingJev is shiny hunting now. Yesterday it beat Brock in under 5 minutes. Now I’ve put it in a loop hunting for a shiny starter completely autonomously. It resets, checks the Pokémon, and keeps going until it finds one. Let’s see how long this takes.Luckey Faraday

Intransitive model matchJev vs GPT 5.6 Luna (low) in Intransitive by webgoatguyAdam Holter

Jev plays Geometry DashJev plays geometry dashNeel Patel

Real-time platformer levelsJev can generate game levels in real time. Faster and cheaper structured output could be a big deal for game dev!Hugo Duprez

Combos FPSjev is insane 🤯 Same Combos FPS. Astra left. @typesafeai Jev right. Reasoning model vs decision model — not even close. Jev does not replace astra, it opens a different game.Combos Fun by Converge.AI

Jev ArenaI've had access to Jev by @typesafeai for about 30 hours now and I can't stop thinking of the million places it can be used 🤯 Meanwhile, checkout this fun snake game I built where 2 Jev's compete with each other to take the trophy 🏆 Try it out here 🔗Raihan Khan