Microsoft shipped Legal Agent inside Word on April 30. Lawyers don’t need a new tab, new login, or new vendor contract. The agent reads the full contract, flags risky clauses, compares them to the firm’s playbook, and writes redlines as native Word tracked changes — same as a partner marking it up by hand. Every suggestion cites the exact source language so reviewers can verify.
What’s inside
Built with legal engineers, not a generic chat wrapper. Clause-by-clause review against the playbook, flag non-conforming language, propose playbook-aligned edits, output a redlined version. Live now in the Frontier preview for US Windows users with a full Microsoft 365 Copilot license.
Why this hurts Harvey
Harvey runs $1,000–$1,200 per seat per month for enterprise. Spellbook is around $99. Microsoft bundles the same playbook-driven redline workflow into the $30 Copilot license firms already pay for. That’s the whole story — Microsoft isn’t beating standalone legal AI on features, it’s winning because Word was already open. Multi-year Harvey and Legora deals signed in the last 18 months suddenly look expensive. “Good enough at 1/30th the price, no procurement” is its own thesis.
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