Observed arrival · 2026-10-18

A browser scratchpad for Jev System One requests

openjeff.dev Visit website

Editorial interest 77/100 Selection signal · not a rating of the site

Open Jeff builds Jev System One API requests, checks limits, estimates costs, and exports them as curl, Python, or TypeScript.

Landing page captured for the 2026-10-18 issue.

For: Developers testing Jev System One API requests
Worth noticing: Its test run uses a 38 MB local model over WebGPU; the page says request inputs stay in the tab.

Field notes

The interface includes model selection, a state field that accepts plain text or pasted JSON, and an add-question control. It can import a request and copy the result in three code formats; the optional test run is described as loading jeff-s1-mini (38 MB) through WebGPU. Limits and pricing come from Jev's public docs, and the page cautions users to verify them before shipping.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

◎NicheUnusually specific use

◉HumanPersonal, local, civic, or handmade

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