This guidance primarily focuses on civil service policy development, analysis and administrative functions in the UK, while acknowledging distinct applications in frontline service delivery. Different civil service functions – from policy development to public-facing services – may require varied approaches to Large Language Model (LLM) implementation. 

While examples here primarily address policy and analytical work, the principles can be adapted for service delivery contexts, and indeed for contexts at other levels of government and outside the UK.

This guidance balances theoretical understanding with practical implementation. The initial sections establish crucial foundations about LLM capabilities and limitations, directly informing the practical frameworks and tools provided in later sections. This structure ensures that implementation guidance is grounded in a solid understanding of the technology’s potential and constraints.

It concludes with a practical roadmap for implementing LLMs into civil service operations. 

Key objectives of this guidance

• Enable informed decision-making about the use of Large Language Models.
• Ensure alignment with civil service values and standards.
• Provide practical frameworks for responsible deployment.
• Support effective risk management and governance.
• Guide the development of institutional capacity for LLM adoption.