AgBench benchmarks agentic AI on personal devices
Researchers Yizhou Han, Di Wu, Dhananjay Saikumar, and Blesson Varghese submitted AgBench, a benchmark suite and open-artifact package for evaluating agentic AI on personal devices, to arXiv on September 29, 2026 arXiv.
Local vs. Cloud Trade-offs
The benchmark reveals a fundamental performance gap in how agentic systems execute depending on where computation happens. According to the paper, local-only execution can complete many agent tasks, but generally achieves lower task success rates and longer completion times than cloud-only execution arXiv. This gap widens as concurrency increases—meaning the more tasks an agent juggles simultaneously, the more pronounced the disadvantage of staying on-device becomes.
The finding carries real implications for the emerging personal AI device market. As smartphones, tablets, and specialized AI hardware compete for agent workloads, developers and enterprises face a choice: privacy and latency (local execution) or reliability and speed (cloud offload). AgBench quantifies that trade-off with concrete benchmark data rather than speculation.
Why This Matters for Agent Deployment
The agent economy is accelerating adoption across enterprises and consumer devices. Companies deploying agents at scale need to know where to run them. AgBench addresses a gap in the research literature: while large language model benchmarks proliferate, agentic benchmarks specific to resource-constrained personal devices remain rare. By releasing an open-artifact package, the authors enable other researchers and practitioners to evaluate their own agent implementations against standardized tasks.
The concurrency finding is especially relevant. Real-world agent deployment rarely means a single task at a time. A personal AI assistant handling calendar management, email triage, and research simultaneously—all at once—pushes local hardware harder. AgBench quantifies how gracefully (or not) on-device agents degrade under that load.
Open Access and Reproducibility
The decision to release AgBench as an open-artifact package aligns with the research community's shift toward reproducible benchmarking. Practitioners can download the suite, run it against their own agent systems, and compare results using a common standard. This removes one barrier to transparent evaluation in a field prone to marketing claims about agent capabilities.
The arXiv submission marks the beginning of community scrutiny. As other researchers cite, extend, and test AgBench, its utility—and limitations—will become clearer. For now, it stands as concrete evidence that local agent execution faces measurable headwinds against cloud alternatives, a finding that should shape where companies invest in on-device inference infrastructure.