Microsoft launches Copilot for Legal, Legora signs with Sirion, and more - Legal AI Weekly #66

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In this edition:

• Microsoft launches Copilot for Legal, and legal research providers plug into it.
• Legora signs with Sirion and Laurel; Sirion also partners with Deloitte.
• Freshfields discusses spinning out its legal AI unit; Harvey heads to Japan.

Microsoft brings legal work into Copilot

Microsoft launched Copilot for Legal worldwide: more than 20 legal skills in Copilot for contract review, drafting, obligation tracking, research and case work in Word and Cowork, plus plugins from more than two dozen legal tech companies. Copilot for Legal

Two of them arrived the same week. Trellis brings more than 2.5 billion state trial court records from 45 US states into Microsoft 365 Copilot, and Bloomberg Law released a connector to search federal and state dockets and follow cases from Copilot. Trellis · Bloomberg Law

Research inside the tools lawyers already use

Thomson Reuters launched the next CoCounsel Legal globally, with research from more than 100 countries and territories in one workflow; it starts in the UK and rolls out to more than 90 countries during 2026. Smokeball adds Westlaw Deep Research to its Archie AI later this month, with CoCounsel Legal to follow in early 2027. CoCounsel Legal · Smokeball

Legora and Sirion

Legora and Sirion will connect their platforms: Sirion's contract data becomes available in Legora for research and drafting, and Legora's research in Sirion for contract review, with Sirion staying the system of record. It starts with selected beta customers. Legora and Sirion

Legora also partnered with Laurel to turn work done in Legora into time entries on the right client matter, and Sirion launched a US alliance with Deloitte Tax for contract and supplier management. Laurel · Deloitte

Firms and markets

Senior Freshfields partners discussed separating Freshfields Lab and bringing in outside investors, with private investment and even an IPO among the options, the Financial Times reported. Harvey plans to open a Tokyo office in the first quarter of 2027, working with Legalscape on Japanese legal sources. Freshfields · Harvey

J.S. Held's AI Disputes Monitor added 42 matters in the third quarter, bringing it to 468; the disputes now go beyond training data and copyright to AI outputs, safeguards, automated decisions and board oversight. AI disputes

Also

Steno opened a beta of Litigation Genius, a workspace for whole case files with page level citations. Turbo Law expanded to all civil practice areas and passed 3,000 active matters. Milyli added AI redaction to Blackout, including native Excel. SixFifty launched an agent for HR compliance. Docusign's agreement management now runs inside Salesforce, Agentforce and Slack. Steno · Turbo Law · Milyli · SixFifty · Docusign

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