AI科研团队自己找出了更强的模型架构
让AI自己搞科研,通常的做法是放一个智能体去试错。这篇不一样:它组了一个AI团队,每个成员有不同学科背景,各自记私密笔记,共享实验结果,再由一个调度机制决定下一步让谁去试。团队被派去找更好的线性注意力架构,结果在13亿参数规模上,语言建模、常识推理、检索任务全面超过现有最强方案。更关键的是对照实验:去掉学科多样性,探索很快停滞;去掉私密历史,进展变慢;随机分配实验机会,不如自适应调度。也就是说,AI自主科研的瓶颈不只是模型多聪明,而是谁在探索、记得什么、资源怎么分。这不是你明天能用的工具,但它指向一个趋势:科研发现本身正在变成AI的组织问题。
📄 原文摘要(英文)
Autonomous agents can increasingly propose ideas, modify code, and run experiments, creating an opportunity to accelerate scientific discovery using teams of collaborative AI researchers. To escape local minima in the discovery, we propose to encourage orthogonal exploration by constructing the team using agents with varying expertise. However, realizing this design requires more than diverse backgrounds. When experiments are costly, a team can test only a limited number of ideas, thereby creating the need to balance exploration and exploitation when selecting a subset of researchers to propose and execute new experiments. Furthermore, each result should shape what the team tries next. We therefore ask how AI researchers with different scientific backgrounds can build on one another's findings and sustain progress under a limited experimental budget. To address these challenges, we build a team of persistent AI researchers, each grounded in a different discipline, who keep private research histories, share experimental evidence, and receive research opportunities through adaptive allocation. We demonstrate the effectiveness of this design by deploying the team to search for linear attention architectures, where it outperforms GDN2 at 1.3B scale on language modeling, common-sense reasoning, and synthetic and real-world retrieval tasks. In controlled comparisons, removing any single organizational component from our design yields markedly weaker discoveries: without disciplinary backgrounds, the search plateaus early; without private histories, researchers make less progress despite identical shared evidence; and uniform selection falls short of adaptive allocation within the same budget. These results suggest that sustained autonomous discovery depends not only on stronger agents, but also on who explores, what they remember, and how research effort is allocated.