iSHIFT: Lightweight Slow-Fast GUI Agent with Adaptive Perception

Fuente: arXiv
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Autori principali: Mehrotra, Sarthak, Rebbapragada, Sairam V C, Bonthu, Mani Hemanth Reddy, Balasubramanian, Vineeth N
Natura: Preprint
Pubblicazione: 2025
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author Mehrotra, Sarthak
Rebbapragada, Sairam V C
Bonthu, Mani Hemanth Reddy
Balasubramanian, Vineeth N
author_facet Mehrotra, Sarthak
Rebbapragada, Sairam V C
Bonthu, Mani Hemanth Reddy
Balasubramanian, Vineeth N
contents Multimodal Large Language Models (MLLMs) show strong potential for interpreting and interacting with complex, pixel-rich Graphical User Interface (GUI) environments. However, building agents that are both efficient for high-level tasks and precise for fine-grained interactions remains challenging. GUI agents must perform routine actions efficiently while also handling tasks that demand exact visual grounding, yet existing approaches struggle when accuracy depends on identifying specific interface elements. These MLLMs also remain large and cannot adapt their reasoning depth to the task at hand. In this work, we introduce iSHIFT: Implicit Slow-fast Hybrid Inference with Flexible Tokens, a lightweight agent that integrates latent thinking (implicit chain-of-thought) with a perception control module. iSHIFT enables an MLLM to switch between a slow mode, which leverages detailed visual grounding for high precision and a fast mode that uses global cues for efficiency. Special perception tokens guide attention to relevant screen regions, allowing the model to decide both how to reason and where to focus. Despite its compact 2.5B size, iSHIFT matches state-of-the-art performance on multiple benchmark datasets.
format Preprint
id arxiv_https___arxiv_org_abs_2512_22009
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle iSHIFT: Lightweight Slow-Fast GUI Agent with Adaptive Perception
Mehrotra, Sarthak
Rebbapragada, Sairam V C
Bonthu, Mani Hemanth Reddy
Balasubramanian, Vineeth N
Computer Vision and Pattern Recognition
Multimodal Large Language Models (MLLMs) show strong potential for interpreting and interacting with complex, pixel-rich Graphical User Interface (GUI) environments. However, building agents that are both efficient for high-level tasks and precise for fine-grained interactions remains challenging. GUI agents must perform routine actions efficiently while also handling tasks that demand exact visual grounding, yet existing approaches struggle when accuracy depends on identifying specific interface elements. These MLLMs also remain large and cannot adapt their reasoning depth to the task at hand. In this work, we introduce iSHIFT: Implicit Slow-fast Hybrid Inference with Flexible Tokens, a lightweight agent that integrates latent thinking (implicit chain-of-thought) with a perception control module. iSHIFT enables an MLLM to switch between a slow mode, which leverages detailed visual grounding for high precision and a fast mode that uses global cues for efficiency. Special perception tokens guide attention to relevant screen regions, allowing the model to decide both how to reason and where to focus. Despite its compact 2.5B size, iSHIFT matches state-of-the-art performance on multiple benchmark datasets.
title iSHIFT: Lightweight Slow-Fast GUI Agent with Adaptive Perception
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2512.22009