Browser Use with Jev: flight query in 7 seconds at $0.0039 per run
yangyi · x · 2026-09-18
Gregor Zunic, founder of the 45k-star Browser Use project, posted a benchmark video: after wiring in Jev (the newly released text-free model from a ChatGPT co-inventor) as a pre-eval discriminator, a real flight query — opening the page, entering filters, returning results — took just 7 seconds at $0.0039 per run, shown at 1x speed with no fast-forward. Key design points: a dynamic action space replaces step-by-step screenshots plus dumping the DOM tree into an LLM — the model maps DOM state at millisecond speed, computing only the small set of currently actionable elements per step — and output token costs drop dramatically (claimed 450x cheaper). The approach shifts web agents from "LLM thinks for tens of seconds" to "millisecond-level deterministic clicks."
Related event: Open-source browser agent books flights in 7 seconds for $0.0039(4 posts)→
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