ローカルTypesafe Jev、できたんやないか？ もうちょい速度は改善余地ありそう
typesafeのJev、これローカルLLMで割といけるんじゃないか？ ていうかそういう使い方するのもローカルLLMの醍醐味だったわけで！
API & Models
Playground
The browser workbench for pasting state and typed questions and inspecting answers, probabilities, confidence, latency, and usage.
- Category
- API & Models
- Also known as
- —
- Related terms
- 4
- Directory entries
- 32
- Docs
- console.typesafe.ai
- Added
- 2026-09-24
Definition
The playground runs System One queries in the browser so you can try decisions before wiring up code. It shows the numbers needed to set act-or-escalate thresholds: probabilities, confidence, latency, and token usage.
Docs examples also carry share links that open the same request in the playground, which makes reproducing a cookbook configuration a click away.
Tagstoolsplayground
Related terms
Definitions that connect to this one.
TypeSafe ConsoleThe web console for API keys, model management, and the playground, with walkthrough lessons and realistic use cases.API & ModelsConfidence gateA threshold on confidence that decides whether code acts, confirms first, or escalates to a person or a bigger model.Answers & ConfidenceUsageThe response field reporting input and output token counts for a request, used for cost tracking.API & ModelsTypeSafe AIThe company behind Jev and the System One API, including the official SDKs, cookbooks, console, and published workflow evals.Core Concepts
From the directory
Browser playground in the TypeSafe console for trying System One: paste state, define typed questions, and inspect answers with probabilities, confidence, latency, and usage.
Cookbooks & DemosPlayground#official#playground#demos
Official
Get an API key, manage models, and try the playground: three walkthrough lessons plus realistic use cases like resume screening and ticket routing.
Tools & IntegrationsPlayground#official#playground#api-keys
Official
Two browser games against a live Jev opponent: a first-person quick-scope arena and a neon survival challenge, where Jev picks tactics and authored code handles movement and physics.
Cookbooks & DemosPlayground#community#playground#games
Community
Four board games against Jev where the model picks the move and code keeps the rules: tic-tac-toe, Connect Four, Battleship, and Wordle.
Cookbooks & DemosPlayground#community#playground#games
Community
An autonomous Pac-Man recreation steered by Jev: before each junction the game sends the maze, actors, and legal directions as structured data, and Jev returns one direction with a probability per option.
Cookbooks & DemosPlayground#community#playground#games
Community
A playable Tetris where you can drop pieces yourself or let the TypeSafe Choice primitive pick every move.
Cookbooks & DemosPlayground#community#playground#games
Community
26 more matching entries in the full directory.
From the community
Posts from builders shipping with Jev right now.
A local Jev build with room to get faster
jev-review: a local-first score loop for coding agents
built `jev-review` @typesafeai it's an experimental, local-first MCP plugin that gives coding agents a score quality feedback loop across different metrics. agents call jev while they work, get scored, make improvements, and repeat the loop try below 👇
@CompleteSkeptic
After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x
The X algorithm, rebuilt with Jev
rebuilt the X algorithm with Jev - uses real weights - simulates virality of your post - has a global feed (you see everyone) it's insanely accurate
Hard-coded rules moved to Jev
Now using @typesafeai Jev in aiseotracker.com, linkdr.com, genppt.com, etc AI ends up vibe coding so much AI regex slop if you don't read the code, so I can finally move all this hard-coding to Jev and it's insanely fast! Also for regular LLM Show more
A chief of staff for bots
got @typesafeai's new model Jev as a chief of staff for bots Jev reads the task, wakes the right teammates off the bench and gives each one the right model It is possible on OpenMausBot as it supports all the LLMs from your existing subscriptions Jev as a decision engine is Show more
Hide posts on X in plain language
I built a browser extension with Jev @typesafeai that can hide/collapse posts on X based on natural language. It's so fast that it's not noticeable and insanely cheap...this must be the future of "ad blockers" and content firewalls.
