MobileMem Benchmark Enables Persistent AI Learning from Mobile Experiences

Xinle Deng, Yida Xue, Xiangyuan Ru, Haoming Xu, Shuofei Qiao, Mengru Wang, Yijun Chen, Buqiang Xu, Chen Jiang, Yuchen Eleanor Jiang, Lizhong Wang, Jianfeng Wang, Li Zeng, Haofen Wang, Guilin Qi, Huajun Chen, Ningyu Zhang· August 17, 2026 View original

Key takeaways

  • AI assistants need long-term memory to learn from continuous mobile experiences.
  • MobileMem is a new benchmark for evaluating on-device long-term memory.
  • It uses year-scale mobile data for realistic, multimodal learning scenarios.
  • The goal is to enable AI to remember, understand, and adapt to user behavior.

Who benefits

MobileSoftware DevelopmentConsumer ElectronicsAI/Tech

Summary

MobileMem is a new benchmark and framework designed to study on-device long-term memory for AI agents, using a year-scale collection of mobile experiences. It aims to move AI beyond isolated questions towards persistent personal assistants that continuously learn from user interactions.

The next generation of AI assistants needs to evolve beyond simply answering individual questions to becoming persistent, learning companions that remember and leverage user experiences over time. This requires robust long-term memory capabilities, especially in mobile environments where data is diverse, multimodal, and highly personal. To address this, researchers have introduced MobileMem, a novel benchmark and framework. MobileMem is built upon a year's worth of simulated mobile user experiences, using a knowledge-grounded synthesis pipeline to create realistic, temporally consistent user-app sessions. It supports both text and multimodal settings, covering complex tasks like multi-hop reasoning, knowledge updates, and inferring implicit user preferences.

Why it matters

For professionals developing personal AI assistants or mobile applications, MobileMem provides a crucial tool to evaluate and advance AI's ability to learn continuously from real-world user interactions, leading to more intelligent and personalized user experiences.

How to implement this in your domain

  1. 1Utilize the MobileMem benchmark to evaluate the long-term memory capabilities of existing AI agents.
  2. 2Design AI architectures that can effectively process and store heterogeneous, multimodal mobile experience data.
  3. 3Develop continuous learning mechanisms that allow AI agents to adapt and update knowledge based on new user interactions.
  4. 4Explore methods for inferring implicit user preferences and temporal reasoning from mobile usage patterns.

Original post by Xinle Deng, Yida Xue, Xiangyuan Ru, Haoming Xu, Shuofei Qiao, Mengru Wang, Yijun Chen, Buqiang Xu, Chen Jiang, Yuchen Eleanor Jiang, Lizhong Wang, Jianfeng Wang, Li Zeng, Haofen Wang, Guilin Qi, Huajun Chen, Ningyu Zhang

"arXiv:2608.13606v1 Announce Type: new Abstract: The next generation of AI agents is increasingly moving beyond systems that answer isolated questions toward persistent personal assistants that can understand, remember, and continuously learn from users' experiences. Such assistan…"

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Originally posted by Xinle Deng, Yida Xue, Xiangyuan Ru, Haoming Xu, Shuofei Qiao, Mengru Wang, Yijun Chen, Buqiang Xu, Chen Jiang, Yuchen Eleanor Jiang, Lizhong Wang, Jianfeng Wang, Li Zeng, Haofen Wang, Guilin Qi, Huajun Chen, Ningyu Zhang on X · view source

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