Jev AI, decoded: pricing, access, benchmarks & news.
Jev doesn't write text — it returns typed decisions with calibrated probabilities. It's open to everyone now: grab $5 in free credit at console.typesafe.ai, or judge it yourself right here — no signup, 5 free runs a day. This hub tracks what it is, what it costs, and how to build on it — and keeps answering as things change.
Jev, in 30 seconds
Jev reads a block of text (the state) plus questions you define, and returns one of three typed answers — a Choice from your options, an ordinal Score, or a Noul true/false probability — each with a confidence estimate. Because the answer shape is fixed in advance, it can't invent text, and it runs 20–200x faster than chat models at 40–400x lower cost. Your code sets confidence thresholds: act automatically when Jev is sure, escalate to a human or a frontier LLM when it isn't.
Jev news, tracked daily
Video deconstructing how Jev works
Editor’s take: With zero comments and just two points, this thread offers no real usage signal, so treat any claims about Jev's typed-decision behavior as unverified until developers share concrete reports. Read source →
Show HN: Fastbrowse, Browser agent that picks clicks with a System One model
Editor’s take: Fastbrowse's use of a System One model for click selection is a useful test case for Jev, but three HN points and two comments are far too little evidence to judge real-world reliability. Read source →
Torturing Jev
Editor’s take: With zero comments, this thread offers no real usage data, so developers should treat any claims about Jev's behavior under stress as unverified until reproducible benchmarks appear. Read source →
Start using Jev today
Jev opened to everyone on Sep 20 — no waitlist. Sign up directly, or go through a gateway:
TypeSafe Console
console.typesafe.ai — free $5 credit (~120M tokens), playground and API keys included.
FastestVercel AI Gateway
typesafe-ai/jev — live since launch day, no separate signup if you're on Vercel.
EdgeCloudflare Workers AI
typesafe/jev — 32K context, runs at the edge, per-request billing.
Pricing at a glance
| Jev | Typical chat LLM | |
|---|---|---|
| Input | $0.042 / 1M tokens | $0.25 – $3.00 / 1M tokens |
| Output | $0 (free) | $2 – $15 / 1M tokens |
| Latency | 70–500 ms | 2 – 80 s |
| Returns | Typed decision + confidence | Free-form text |
Explore the hub
What is Jev?
System One models explained: primitives, architecture, benchmarks and honest limitations.
Playbook10 use cases
Routing, triage, guardrails, RAG filtering — with real community numbers.
DecisionJev vs LLMs
When the cheap typed model wins, and when you still need a frontier LLM.
BuildEcosystem
openjev, jev-ultrafast, pg-jev and a dozen community projects building on Jev.
AnswersFAQ
20 questions answered: access, pricing, limits, and what to distrust.
ToolPlayground
Run real Jev decisions in your browser with your own API key — Choice, Score, Noul, live probabilities.
中文中文版
本站的完整中文版本，内容同步更新。