From synthetic enterprise data evaluations to real Microsoft Copilot AI confidence

At a glance Evaluating Microsoft Copilot at enterprise scale requires test data that captures the full complexity of real organizations, yet real enterprise data contains sensitive information that cannot be used for evaluation under any circumstances. To resolve this tension, we built Industry Evaluation Data Generation Platform: full-scale synthetic enterprise environments grounded in publicly available real-world data sources such as O*NET occupational data, online job postings, and SEC filings. The synthetic environments mimic real business workflows, helping Microsoft find issues that generic benchmarks would miss. Safety and privacy are built into the platform by design. Every environment is fully synthetic and automated content-safety checks keep the generated data free of harmful or personally identifiable material. Every day, millions of knowledge workers around the world rely on Microsoft Copilot to draft documents, summarize meetings, surface relevant information, and accelerate productivity. Behind the scenes, this is powered by a network of AI systems, and ensuring they work as intended requires a thoughtful approach to evaluation. At Microsoft, we know that high performance doesn’t come from guesswork. It comes from testing, measuring, and iterating constantly. Healthcare organizations are constantly synthesizing safety signals from across teams so that they can make faster, better decisions that directly influence patient outcomes and regulatory confidence. They may ask Copilot to summarize a meeting and extract action items for their teams. Within seconds, Copilot delivers a structured summary citing specific discussion points from the transcript. But how do we ensure this response is accurate, complete, and properly grounded in the meeting content? This is where our evaluation system comes in. We’ve developed a structured evaluation strategy called Industry Evaluation Data Generation Platform , which includes industry specific evaluation datasets designed to test AI systems against realistic enterprise scenarios, grounded in three core pillars: Synthetic enterprise environments : simulated Microsoft Copilot environments with realistic users, meetings, emails, documents, and organizational structures that replicate the complexity of real organizations without using any customer data Automated query generation pipelines for rapid, reproducible creation of evaluation datasets Structured quality frameworks to ensure synthetic data meets the bar for meaningful evaluation Together, these pillars help us answer two fundamental questions: Is Microsoft Copilot actually doing what our users need it to do, and can we prove it without ever touching their data ? In this blog post, we’ll walk through our evaluation system and processes, from synthetic environment generation to automated query pipelines, and how it all comes together to establish the first standardized evaluation baseline for Microsoft Copilot. Synthetic enterprise environments Evaluating enterprise AI requires test data that captures the full complexity of real organizations: reporting structures, project histories, communication patterns, and domain specific workflows. But real enterprise data contains sensitive information that cannot be used for evaluation under any circumstances. This is the central tension we set out to resolve. Rather than relying on small, manually curated test fixtures, we generate full scale synthetic environments : simulated enterprise workspaces, each with realistic organizational structures, communication histories, and work artifacts. In Microsoft terminology, each of these simulated workspaces is called a “tenant”. A tenant is an isolated organizational environment with its own users, data, and configurations. These environments are scalable baselines that teams and organizations can build off of however they want. They are designed to exhibit the same structural and behavioral properties that make enterprise AI evaluation meaningful. Grounding in real world signals To ensure our synthetic environments are realistic, we grounded them in publicly available real world data sources. O*NET data from the U.S. Department of Labor’s occupational database was used to make synthetic employee roles and responsibilities realistic, calibrate the mix and frequency of work activities assigned to different roles, and tailor industry specific workflows such as clinical trial reviews or portfolio updates. Online job postings provide realistic role titles, reporting hierarchies, and departmental compositions. SEC filings inform organizational scale, business unit structures, and financial contexts. All of these sources are publicly available and have been reviewed and approved by Microsoft’s legal and policy organization. Importantly, these synthetic environments are not static snapshots. They simulate dynamic, time-evolving organizations with meeting histories, project timelines, email threads that develop over weeks, and organizational changes that unfold naturally. This temporal dimension is essential because a large class of Copilot queries are inherently time aware. Questions like “What did the team decide last Thursday?” or “What’s changed since the last quarterly review?” only produce meaningful evaluations if the underlying data has a genuine temporal structure. Industry specific simulation We generated three synthetic environments across multiple industries, each with distinct characteristics that mirror real world usage: A pharmaceutical environment that includes regulatory submission workflows, clinical trial discussions, and cross functional safety review meetings A capital markets environment featuring deal pipelines, compliance communications, and client portfolio reviews An IT/software company that simulates sprint planning, code review discussions, and product launch coordination This industry specificity ensures that our evaluation queries test Copilot against the kinds of questions real users in those domains actually ask, rather than relying on generic test cases that may not surface domain specific failure modes. Automated query generation While synthetic environments provide the substrate for evaluation, they face a key limitation: we still need realistic evaluation queries. These are the questions that test whether Copilot can surface the right information, synthesize it correctly, and present it helpfully. Manually writing thousands of grounded, industry specific queries is prohibitively expensive and slow. That’s where our automated pipeline comes in. The six-stage pipeline We built an automated pipeline that turns simple, generic query ideas into realistic, industry-specific questions for Copilot. It starts with a large library of common workplace tasks, narrows them down to what’s relevant for a given industry, and adapts them using domain-specific language and context. The system then uses AI to generate queries grounded in the synthetic environment’s data, rewrites them to sound more natural and human, and validates each one for accuracy and uniqueness. The result is a rich set of high-quality, lifelike queries that enable scalable and reliable evaluation of Copilot across real-world scenarios. Validating synthetic quality Of course, generating synthetic data is only part of the challenge. We also need to ensure the data is good enough to produce meaningful evaluations. We assess synthetic environment quality using our internal semantic evaluation framework which measures quality across three dimensions: Structural fidelity : Does the organizational structure reflect realistic reporting hierarchies, team sizes, and cross functional relationships? Contextual relevance : Are the queries and workflows representative of actual enterprise usage patterns? Behavioral realism : Do the simulated users exhibit human-like communication patterns and collaboration dynamics? Content safety : Is the generated content free of harmful, offensive, or perso