# 微软在Excel和Outlook中用自研MAI-1替换OpenAI/Anthropic模型以降低Copilot成本

- 来源：Ethan Mollick (@emollick)
- 发布时间：2026-07-08 04:44
- AIHOT 分数：71
- AIHOT 链接：https://aihot.virxact.com/items/cmrb4kdjb00o8ihl10hd2n5lo
- 原文链接：https://x.com/emollick/status/2074595359364411651

## AI 摘要

彭博社报道，微软已在Excel和Outlook中用自研MAI-1替换OpenAI与Anthropic模型，以减少Copilot调用外部模型的高昂费用。微软AI负责人Mustafa Suleyman明确表示要降低并最终消除外部成本。但MAI-1尚无独立基准，已发布结果劣于Claude Sonnet 4.6。学者Ethan Mollick质疑其在Office场景的表现，认为已有更优的Claude/OpenAI插件。微软目前仍通过长期合作获得OpenAI优惠，但折扣可能消退。

## 正文

MAI-1 has no independent benchmarks yet， but the ones they released suggest it is worse than Sonnet 4.6.

Not sure it is going to be great as a Copilot at Excel and Outlook， especially as there are already quite good Claude/OpenAI plugins for office using good AI. We will see.

### 引用推文

> Rohan Paul：Bloomberg: Microsoft is replacing OpenAI and Anthropic models inside Excel and Outlook to cut Copilot costs. Excel and Outlook used to lean more heavily on outs...