San Francisco rolled out Microsoft Copilot to roughly 30,000 employees across more than 40 departments beginning in July 2025. Between July 2025 and April 2026, city records show workers exchanged more than 1 million messages with Copilot, and Copilot interactions climbed by more than 200% in that period, even as the share of employees using the tool held steady at around half of the workforce. Before Copilot became widely available, about 2,000 staff participated in a six-month ChatGPT pilot, and OpenAI hosted eight training sessions that drew more than 3,000 attendees overall. According to a report by the San Francisco Civil Grand Jury, 70% of survey participants in that pilot said they saved up to five hours per week using ChatGPT. Since December, the Department of Police Accountability has posted the highest Copilot use rate among major departments, while the Department of Public Health has logged the largest raw number of interactions. One Port collections officer alone recorded more than 1,200 Copilot interactions in a five-month stretch. San Francisco’s Generative AI guidelines, updated in July 2025, require employees to review and fact-check AI-generated material before it is used in public-facing or sensitive work, and explicitly prohibit creating images, audio or video that could be mistaken for real people. In its official reply to the Civil Grand Jury, the mayor’s office said it agrees with many of the jury’s findings, backs the Copilot rollout, and