Jev Ultrafast: A browser agent with a dynamic, indexed action space

A browser agent with a dynamic, indexed action space.

Give it one goal. TypeSafe's Jev picks an operation and an element. A small LLM writes text only when the operation is TYPE_TEXT .

Zürich → London on Google Flights in 7.1 seconds. One natural-language goal, actual text generation, and loading waits included.

Every observation produces a new element table:

[1] button Change ticket type · Round trip [2] combobox Where from? · San Francisco [3] combobox Where to? · empty [4] textbox Departure · empty ... The operations are CLICK , TYPE_TEXT , SELECT , SCROLL_UP , SCROLL_DOWN , WAIT , DONE , and BLOCKED . Only supported operations and targets are offered.