Brad Smith is more than the vice chairman of the board and president of Microsoft: Smith is also a lawyer and as he himself tellsat the beginning of his career he asked his company for a computer because he firmly believed that computing could change the way lawyers work. In fact, his Wikipedia biography gives more detail: it was the requirement that the Washington, DC law firm Covington & Burling set to join.
Said and done: in 1986 he was the first person in the firm to have one, which ran the legendary Word 1.0 processor. Seen in perspective it sounds like marketing, but a tremendous omen: Microsoft just announced Legal Agent for Wordan AI agent designed for legal work.
What’s new from Microsoft is not a legal Copilot. Legal Agent is an agent designed to understand and operate within a legal document as a lawyer would: it analyzes risks, compares clauses against the organization’s internal rules, has tracking for the changes it generates, differentiates previous reviews of new proposals and detects potentially problematic provisions. Everything happens within the .docx itself, without leaving Word.
What distinguishes it technically is its architecture. The agent does not ask the LLM to generate each edit directly, but instead combines that semantic understanding layer with a deterministic layer that applies the changes in a controlled way. This allows you to insert clauses, delete paragraphs, or add comments while preserving the original formatting of the document, including tables, lists, and change history. The result is a more reliable and predictable system than a chatbot, with fewer hallucinations and with the consistency that legal work demands. Brad Smith’s tweet includes a video that lasts almost a minute and a half where it can be seen in action:
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Why is it important. The key is not so much the technology, which already existed, but rather the distribution: Word is the program par excellence for drafting, reviewing and negotiating contracts around the world. Integrating there means being in the right place at the right time, without friction: it eliminates the need for another service, creating an account and logging in, the learning curve, the workflow between two different apps, data migrations and security. All in one, all easy.
The definitive boost is the price. While subscribing to specialty products like Harvey they hover the 1,000 – 1,200 dollars per lawyer per base month, according to market estimates collected by Sacrathe Legal Agent arrives integrated into theCopilot Enterprise subscription of 30 dollars a month that surely many spiteful people already pay per se. The difference in magnitude and the product placement anticipate a voracious entry into this market niche.
Context. A troubled river, fishermen’s profit: Microsoft did not start from scratch for this project. At the beginning of the year contract to more than 18 engineers from Robin AI, the legal AI startup that collapsed after failing to close its $50 million round. Probably if Robin AI had not fallen, Microsoft would not have been able to create such a product so quickly.
We were talking about other specialized products but the name on the horizon was one: Harveythe sector’s benchmark. Founded by Winston Weinberg and former Google DeepMind Gabe Pereyraoperates with more than 100,000 law professionals in more than 1,300 organizations and is valued at 11 billion dollars. Your latest financing round It was 200 millionclosed in March 2026 and co-led by GIC and Sequoia. It is true that its proposal goes beyond the review of contracts: it has more than 25,000 personalized agents operating on its platform with deep integrations into the document management systems used by large law firms, such as iManage and NetDocuments. Bottom line: It’s not a $30 a month feature.
Yes, but. In any case, for now the product is still in early access, only in Word for Windows, with configuration restrictions and some complaints from those who have already tried it. Furthermore, it remains to be seen whether lawyers will trust into a mainstream tool for highly complex cases where a minimal error can be costly. The battle of price and distribution is won, confidence and technical depth is another story.
Saying that Microsoft is going to kill Harvey it’s an exaggeration: The Legal Agent is more focused on volume work, that more mundane work of routine reviews, standard contracts, NDAs… that takes legal professionals hours every day. Harvey is strong in more complex and/or high-risk tasks: a multinational with a serious litigation advised by an elite law firm is hardly going to entrust the matter to an agent included in an Office subscription. What the Robin AI story does make clear is that having a good product and customers does not guarantee survival: the group of organizations willing to pay is smaller than the investment rounds anticipated.
Cover | Brad Smith on Twitter
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