jevVIDEO

FastJev runs Jev Ultrafast browser tasks locally on one RTX 5090

A single RTX 5090 running Qwen3.8-27B locally completed Jev Ultrafast's official browser task with FastJev, from searching Lisbon to opening Casa Flora in five actions, at 10.375 seconds end to end, with source code and decision trace included.

chengyongru

@chengyongruArchived 2026.09.23Originally posted 2026.09.22

chengyongru @chengyongruOriginally posted 2026.09.22

Open original on X

基于FastJev 跑通了 Jev Ultrafast 的官方浏览器任务。单张 RTX 5090，本地 Qwen3.8-27B EXL3 连续完成 Lisbon 搜索、Design 筛选、免费取消和打开 Casa Flora：5 个浏览器动作，第 6 次决策返回 DONE。单次录制端到端 10.375 秒，决策请求延迟中位数 1.388 秒；FastJev 0 输出 token，录制中 0 次 TypeSafe API 调用。源码 revision、决策 trace 和录像都在这里： https://github.com/chengyongru/fastjev/tree/main/demo/jev-ultrafast

x.com/chengyongru/status/2102380673030123933Archived 2026.09.23 10:17