Summary
Clifford Chance became one of the first law firms globally to deploy both Microsoft Copilot for Microsoft 365 and Viva Suite at scale across its entire workforce, alongside its proprietary Clifford Chance Assist built on Azure OpenAI.
Clifford Chance announced it was expanding its use of AI technologies with the firm-wide deployment of Copilot for Microsoft 365 and Viva Suite, making it one of the first organizations globally to implement both at scale.
The deployment includes:
- **Microsoft Copilot for Microsoft 365**: AI assistance embedded in Word, Excel, PowerPoint, Outlook, and Teams
- **Viva Suite**: Employee experience and analytics platform
- **Clifford Chance Assist**: Proprietary AI tool built on Microsoft's Azure OpenAI platform
Clifford Chance Assist was developed as a private, secured AI tool specifically for the firm's needs, representing one of the first instances of a major law firm building its own enterprise AI application.
Early adoption metrics:
By end of April 2024, the firm reported:
- More than 60% daily adoption rate
- Widespread use across practice groups
- Positive feedback from lawyers on efficiency gains
Strategic approach:
During FY24, the firm's AI Steering Groups:
- Identified 400+ AI use cases for review
- Prioritized use cases for firm-wide delivery
- Established AI Principles aligned with international best practices
The AI Principles are grounded in:
- Fairness
- Transparency
- Accountability
- Privacy
These principles are integrated into a comprehensive policy framework guiding AI use across the firm.
Microsoft's perspective:
According to Microsoft UK Stories, Clifford Chance's deployment demonstrates how global law firms can innovate with generative AI while maintaining security and compliance standards. The partnership provides Microsoft with a reference case for enterprise legal AI deployment.
The deployment set the stage for Clifford Chance's subsequent achievement of 90% AI adoption by end of 2025, demonstrating the effectiveness of early, comprehensive rollout strategies.

