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browser-use shipped jev-ultrafast one day after Jev launched, cutting browser protocol calls from 1,092 to 101
browser-use/jev-ultrafast was created 2026-09-16 and already has 782 stars and 38 forks. It replaces per-step action generation with two decisions per cycle (which operation, which element) served by a single speculative fan-out request over TypeSafe's Jev, and only invokes a text model when typing is actually required. The README reports a Zürich-to-London Google Flights search in 7.1 seconds end to end, a 25% wall-clock reduction over six runs (9.45s to 7.09s), and browser protocol calls falling from 1,092 to 101 — the call-count collapse is the real mechanism, not model speed.
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