Decoupling VLM planning from action execution using a lightweight executor reduces model serving costs dramatically without sacrificing task performance on mobile GUI automation.
Jev-Mobile improves mobile GUI agents by separating planning from execution: a vision-language model makes high-level decisions infrequently, while a lightweight decision model (Jev) handles repeated low-level actions. This cuts inference costs by 73% and execution time by 33% while maintaining 79% task success on Android tasks.