研究发现：个人智能体会根据用户财富推断推荐更贵选项

8 个模型在请求完全相同的情况下，对被推断为富裕用户的推荐价格更高，Claude Opus 4.8 在机票上差价达 198 美元、保险每月差 284 美元。

Gemini 2.5 Flash 即使被要求选最便宜的机票，仍多花 208 美元。

隐藏非财务字段无法消除差距，隐藏雇佣信息反而让 GPT-5.5 的保险差价扩大 40%，更大参数量的模型也没有改善。

Personal agents gone wrong. As we embrace more personal agents to carry out personalized tasks in the real world, interesting dynamics and behaviors will emerge. I think personal agents as they stand still require careful steering and tuning to ground them in our expectations. In this interesting new work, a personal agent read a user's emails about a $680K 401K and a vested stock grant, then recommended a $601 business-class ticket when a $91 economy fare was available. They ran 325K experiments on 13 models across flights, health insurance and graduate programs. Eight models chose more expensive options for users they inferred were wealthy, with the request held identical. The gaps reach $198 per flight and $284 per month for insurance with Claude Opus 4.8. When a wealthy user asked for the cheapest flight, Gemini 2.5 Flash still picked options $208 above it. Hiding non-financial fields in the profile does not remove the gap, and hiding employment raised GPT-5.5's insurance gap by 40%. Larger models do no better. If your agent has memory or inbox access, the context you give it changes what it recommends. Paper: arxiv.org/abs/2609.24927 Chat with Paper: academy.dair.ai/papers/et-tu-b…📊 9 ⚡

本条情报归属 AITOP「论文」核心栏目，重点聚焦北美前沿实验室与硅谷科技巨头。在跨区域产业观察坐标中，该动态直接关联「AI 开发者工具链、Coding Agent 与工程化实践」「各国 AI 监管法案、合规治理与主权算力政策」研究主线，反映出当前技术演进与商业落地的最新风向。涉及核心实体与技术议题包括：Claude Opus、Gemini 2.5 Flash、GPT-5.5、智能体，读者可通过下方标签进入对应专题页查阅历史脉络与关联对比。

信源核验说明：本文原始线索采编自「elvis」（@omarsar0），经 AITOP 多维评分管线结构化提炼。截至目前，全网已有 4 家独立信源对该事件进行交叉印证与跟进报道（含 Gorden Sun、宝玉、Fireworks AI 等），属于近期高关注度行业信号。