JEV is INSANE. We gave it 700 high-intent leads and personalised outreach messages. In 40 seconds, it predicted how each message would perform, assigned a confidence score and detected lead-message mismatches. All for just $0.09. JEV can also score leads, analyse buying Show more
jevQL
psql-shaped CLI and Go, TypeScript, and Python SDKs that let you write jev(), jev_prob, jev_choice, and jev_score in queries against vanilla PostgreSQL, judging the surviving rows with Jev in batches. No CREATE EXTENSION or superuser required.
- Category
- Tools & Integrations
- Published by
- Community
- Author
- kylemclaren
- Added
- 2026-09-22
Tagscommunitygopostgressqlcli
Highlights
- Adds jev(), jev_prob, jev_choice, and jev_score to ordinary SQL on vanilla PostgreSQL with no extension.
- Postgres runs the plain SQL; Jev judges the surviving rows in batches and answers are cached in local SQLite.
- Statements without jev_* pass straight through, and --explain shows the row count and cost estimate before spending.
- Ships a psql-shaped CLI plus Go, TypeScript, and Python SDKs and a shared HTTP and MCP node.
- Every row that survives the SQL filters is sent to TypeSafe, so cheap predicates belong in SQL first.
Quickstart
bash
brew install kylemclaren/tap/jevql
export TYPESAFE_API_KEY=YOUR_API_KEY
export DATABASE_URL=postgres://user:pass@localhost:5432/app
jevql -c "SELECT * FROM people WHERE jev(people, 'could work from home')"Watch out
MIT-licensed. Needs a Postgres connection and a TYPESAFE_API_KEY; building from source requires Go 1.23+ with CGO and a C compiler because libpg_query is bundled.
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From the community
Posts from builders shipping with Jev right now.
700 leads scored for $0.09
Beating Gemini Flash Lite on an eval
Ran @typesafeai's Jev against an existing classifier eval that previously used Gemini 2.5 Flash Lite. It won both on quality (saturated the eval) and speed (6x)
Browser Use Ultrafast, powered by Jev
Breaking: Browser Use + Jev = Ultrafast ⚡ Findings flights took 7s and cost only $0.0039 🤯 > new action space every step > DOM state space > small LLM fallback to type (this video is at 1x speed btw) Built a tiny open source browser agent. try it below ↓
A really smart switch statement
hype-free explanation of jev: jev does not replace gpt / claude jev is just a *really* smart switch statement like if 2016 ml classifiers got 2026 levels of intelligence it's a new* type of tool that will make a lot of workloads insanely fast, cheap, and accurate * = and by Show more
@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
When a designer gets Jev
when a designer gets access to Jev
Full Jev video tutorial
Full Jev Tutorial What it is, how you can build with it and what new applications it can unlock → 0:00 Intro → 0:34 Jev explained → 4:06 API setup → 5:59 Demo 1: Voice-controlled browser → 11:33 Demo 2: AI memory → 17:27 Demo 3: YouTube predictor