If you’re using Microsoft 365 Copilot, you already know it’s a powerful AI assistant. But what if you could make it even smarter? What if it could understand your company’s unique voice, internal processes, and specific terminology? That’s where Microsoft 365 Copilot Tuning comes in.
By 2026, the shift from generic AI assistants to highly specialised enterprise AI agents will be well underway. Organisations are realising that to get the most value from AI, it needs to be customised. Copilot Tuning is the key to unlocking that next level of productivity.
This guide will walk you through what Copilot Tuning is, why it’s a game-changer for IT leaders, and how you can prepare your organisation to take full advantage of it.
What is Copilot Tuning?

Copilot Tuning is a feature within Microsoft Copilot Studio that allows you to fine-tune large language models (LLMs) using your own organisation’s data. It lets you create custom, domain-specific enterprise AI agents that understand your company’s terminology, processes, and knowledge.
Think of it as training an expert team member. Instead of a general-purpose assistant, you get a specialised agent that can handle tasks like drafting legal documents in your firm’s style or answering HR questions based on your specific policies. The best part? It’s a low-code/no-code process, so you don’t need a team of data scientists to get it done. All the training happens securely within your Microsoft 365 tenant, ensuring your data remains private.
Why Should IT Leaders Care?
Implementing Copilot Tuning offers significant strategic benefits that can give your organisation a competitive edge.
- Tailored Responses: Create AI agents that reflect your corporate voice, terminology, and internal processes for consistent and on-brand communication.
- Improved Accuracy: Because the models are trained on your data, the outputs are more relevant and accurate, with fewer “hallucinations” or generic answers.
- Competitive Advantage: Build custom agents for specialised departments like HR, legal, or sales, turning your internal knowledge into a unique operational asset.
- Secure Data Governance: All model training stays within your Microsoft 365 service boundary. Your data isn’t used to train foundational models, ensuring your information remains secure and compliant.
How Does Copilot Tuning Work?
The process is straightforward and managed through Copilot Studio. It involves a simple workflow:
- Data Selection: Choose relevant, high-quality internal data sources (like SharePoint sites or documents) for training.
- Fine-Tuning: Use the intuitive interface in Copilot Studio to train the model on your selected data.
- Agent Creation: Build a custom agent using the newly tuned model with the Agent Builder.
- Deployment: Deploy the agent for users to interact with through familiar apps like Microsoft Teams and Word.
Throughout this process, administrators can manage permissions and rollout using governance controls in the Microsoft 365 admin centre.
Planning Your Implementation for 2026
To make the most of Microsoft 365 Copilot Tuning, preparation is key. Here’s a checklist to get you started:
- Data Readiness: Identify and gather relevant internal data. Ensure it’s clean, structured, and up-to-date to train the most effective models.
- Governance Framework: Establish clear policies for AI use. Define roles, permissions, and compliance protocols to ensure everything is secure and auditable.
- User Adoption Plan: Plan how you will train employees—especially domain experts and content creators—to build and use the new custom agents.
- Assess Licensing: Check your organisation’s eligibility for Copilot Tuning. Consider starting with a pilot program to test use cases and budget accordingly.
Your Next Steps
Copilot Tuning is set to transform how businesses leverage AI, turning general assistants into specialised, expert partners. By fine-tuning models with your own data, you can unlock a new level of efficiency and competitive advantage.
The time to start planning is now. Begin by identifying high-value use cases, preparing your data, and establishing a solid governance framework. A pilot program can be an excellent way to demonstrate value and build momentum.
To explore how your team can get started, consider scheduling a workshop to identify your first wave of use cases and prepare for the future of enterprise AI.
