Rank#864of 3,449
MicrosoftLive sourceProductionEvidence: Medium50/100

Simmons & Simmons Revolutionizes Legal Practice with Percy AI

Use case typeLegal drafting assistanceUpdated Jun 13, 2026

Simmons & Simmons, a global law firm, developed Percy AI, a Generative AI platform, utilizing Microsoft Azure OpenAI services. Percy AI accelerates legal tasks like document drafting, comparison of witness statements, and industry risk analysis using Retrieval-Augmented Generation. It enhances operational efficiency, service quality, and introduces innovative AI-driven tools transforming how their legal teams work.

Organization
Simmons & Simmons
Industry
Legal
Location
United Kingdom
Published
March 2025

Reported outcomes

Strategic outcomes

New product / capabilityDeveloped an AI legal platformNew product / capabilityAdded legal drafting and analysis toolsSpeed & agilityAccelerated legal document reviewsCompetitive differentiationImproved service quality and competitiveness
Why do we believe this deployment?Customer identity, provider attribution, maturity, and source checks
Customer
Simmons & Simmons
Provider
Microsoft
Maturity
Production

It enhances operational efficiency, service quality, and introduces innovative AI-driven tools transforming how their legal teams work

Customer identity supportedSource describes one deploymentMaturity supported

Primary read

Use case focus

Showing 3 of 3

  • 1Legal document analysis agent
  • 2Risk analysis
  • 3Document drafting agent
  • Time-intensive processes for legal document analysis and drafting.
  • Difficulty in comparing witness statements and identifying inconsistencies.
  • Challenges in reporting industry risks efficiently.
  • Development of Percy AI leveraging Microsoft Azure OpenAI.
  • Integration of Retrieval-Augmented Generation for high factual accuracy.
  • Daily use across the firm for specialized and general legal tasks.
Technologies
Azure OpenAI
  • Significant time savings in legal document reviews.
  • Improved competitiveness with superior service quality.
  • Enhanced efficiency in pro bono and client-related activities.
Architecture

Percy deploys Retrieval-Augmented Generation (RAG) and customized inference engines for handling specific legal use cases using Azure OpenAI.

Sources & evidence1
Evidence: Medium50/100Evidence strength
  • Customer explicitly identified
  • Deployment status explicitly supported
  • Technical implementation details available
  • Recent evidence check available
  • Last evidence check: Jul 22, 2026.
Live sourceStill referenced

The case's original source is still reachable.

  • Cited source last checked Jun 12, 2026 — ok (0/1 broken).

Measures whether this deployment's public evidence persists — not whether the system is still in production.

Published: Mar 24, 2025Publisher: ukstories.microsoft.com
Primary source

AI-generated summary. Verify important details with the linked sources before relying on this case.

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AI patterns
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