TYPESAFE AI / COMMUNITY PLAYGROUND
Small model. Many possibilities.
Explore Jev through 25 hands-on examples. Give it context, define the choices, and watch a decision take shape.
A classifier at the center.
You control what happens next.
25 of 25 examples
Example builder
Explore the original catalog, edit inputs and define your own closed-set questions.
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- Context
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- typed answer
Jev Chat
Explore Jev-driven response composition, source passages, constrained fiction, and visible decisions.
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- Question
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- composed response
Conversation lab
Rank messages and find the person your bot should answer next.
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- Messages
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- best reply target
Document extraction
Select dates, vendors and amounts from values actually present in a document.
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- Document
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- selected fields
YouTube extract
Select original caption passages with Jev scores, cost tracking and timestamp-linked verification.
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- Video captions
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- chronological extract
Vector reranker
Compare Jev, vector similarity and a lexical baseline on the same candidates.
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- Search results
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- relevance order
Meme lab
Classify a meme’s humor, audience and clarity from reviewed captions.
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- Caption
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- audience fit
Ask gate
Decide whether a request belongs with Jev or needs human attention.
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- Request
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- reviewer
Workflow chat
Describe a scenario and see which action follows your process.
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- Scenario
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- next action
Tool router
Follow a request through a graph with blocked tools and approval stops.
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- Request
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- permitted tool
LangChain
Try a typed routing tool with live classification or a mocked response.
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- Tool call
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- governed route
Clean-room rebuild
Rebuild observed screens and API contracts, then compare behavior in a real browser.
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- Observed app
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- verified rebuild
Browser agent
Drive a synthetic flight search from an indexed element table, one operation and target per request.
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- Element table
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- operation + target
PR review
Paste a PR or diff to separate routine changes from hunks needing review.
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- Diff
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- review gate
Proposal review
Let an agent propose one patch, ask Jev four questions about it, and let code decide.
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- Proposal
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- code verdict
AST governance
Trace changed symbols, affected callers and deterministic policy findings.
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- Symbols
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- change impact
SMT solver
Compare Jev’s prediction with an exact solver on structured constraints.
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- Constraints
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- verified result
Jev plays Doom
Enter JevDoom’s fullscreen 3D arena and compare human, Jev and random play.
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- Arena state
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- one action
MicroDuck arena
Guide a robot through a 3D delivery floor with seven possible actions.
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- Robot sensors
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- movement
Jev attempts chess
See why choosing a legal move without lookahead falls short of a chess engine.
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- Legal moves
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- one choice
IQ-style test
Give Jev 24 original reasoning puzzles and check each choice against an explained answer key.
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- Reasoning puzzles
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- checked answers
Twisty puzzle solver
Ask Jev to choose turns on 2×2, 3×3, 4×4 and Megaminx, verify the state, and compare with local search.
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- Scramble
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- checked solution
Arcade3
Classic games Jev can actually play: one legal move at a time, scored against a random baseline.
View sectionSnake
Steer toward the apple without hitting a wall or your own tail, one turn per decision.
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- Board features
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- next direction
Breakout
Keep the ball in play and clear bricks by moving the paddle left, right or holding still.
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- Ball and paddle
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- paddle move
Meteor dodge
Fly a ship through five lanes of falling meteors and survive as long as possible.
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- Lanes ahead
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- lane change