Microsoft's AI Copilot Rivals Teams and Outlook in Popularity

Microsoft Invests Heavily in AI

Microsoft has taken significant steps to strengthen its position in the field of artificial intelligence, focusing on enhancing its infrastructure and developing new models. During the announcement of its financial results for the fourth quarter of fiscal year 2026, the company revealed that the use of its AI Copilot by employees is now as common as the use of its flagship tools, Outlook and Teams.

Microsoft CEO Satya Nadella emphasized that the number of conversations per user with Copilot has nearly doubled in a year. He noted that the average weekly engagement of users with Copilot is comparable to that observed with Outlook and Teams.

Growing Adoption of Microsoft 365 Copilot

Microsoft 365 Copilot has surpassed 30 million paid subscriptions, and the use of this AI by workers continues to evolve. Two months after the launch of Agent 365, a solution that allows companies to create and use AI agents, Microsoft recorded nearly 40 million active agents across more than 10,000 companies, according to Nadella.

The importance of GitHub in this transformation was highlighted by Nadella, who noted that the development platform, owned by Microsoft, is essential for the agentic era. He mentioned that every major coding agent operates on GitHub, and one-third of the pull requests on the platform now involve an agent.

Financial Performance and Ongoing Investments

Microsoft exceeded investor expectations by posting an 18% revenue growth compared to the previous year for the quarter, primarily attributed to its AI and cloud services. Azure, Microsoft's cloud platform, for the first time surpassed $100 billion in revenue. The company also benefited from a gain of $3.2 billion from its stake in Anthropic, the creator of Claude.

However, the company also faced charges related to layoffs at Xbox, affecting 3,200 employees, which had a negative impact on its financial health. Despite this, Microsoft managed to generate a net income of over $35 billion.

The Era of Agentic AI

Microsoft continues to invest heavily in its AI system, Copilot, and these efforts are beginning to pay off. Nadella announced that Copilot's revenue has increased by 60% quarter-over-quarter. To support this growth, Microsoft has opened 31 new data centers across five continents.

Integrating AI into Microsoft's software, which is already widely used in the professional world, has become a priority. According to a study by the Pew Research Center, American adults primarily use AI for work assistance, just after information retrieval.

Towards a Transformation of Work

The adoption of AI is no longer limited to automating repetitive tasks to save time. With the era of agentic AI, agents are capable of performing tasks autonomously, changing the way employees interact with technology.

Matt Firestone, General Manager of Product Marketing for Copilot, explains that the goal is to enable deeper cognitive work within the ecosystem. Workers now need to discern when to use a quick AI response and when to resort to more advanced tools for complex tasks requiring human intervention.

Development of Advanced AI Tools

Microsoft is striving to develop more sophisticated AI tools to help accomplish complex missions. Copilot Cowork, for example, uses a team of agents to draft reports, send messages, and perform customized analyses, relying on users' documents and messages.

This approach is similar to that of Claude Cowork, which has raised concerns on Wall Street due to its effectiveness in software tasks. During testing, Microsoft found that using Copilot Cowork was on average 30% to 40% less costly.

The Impact of AI on Work

The integration of AI into the workplace is not limited to improving efficiency. Companies are now looking to measure how agents enhance workflows and perform analyses that are impossible to conduct manually.

A concrete example is Kantar, a marketing data and analytics company, which has gradually integrated AI Copilot and agents into its operations. Kantar's HR team used a system of 10 agents to manage certain employee requests, such as generating employment verification letters. Since implementing this technology, AI has handled 40% of these requests, with a goal of reaching 95% by the end of the year.

Implications for Workers

The increased use of AI has saved time for human HR experts while boosting productivity, allowing workers to focus on other projects. John Dicken, Senior Director of AI Solutions for People, emphasizes that AI is seen as a capability rather than just a technology.

However, this increased capability can also lead to an overload of work for some employees, who must accomplish more tasks for the same salary. A study from the University of California, Berkeley warns of the risk of AI-induced burnout, where even with the help of technology, workdays lengthen and work-life balance deteriorates.

The Expanding AI Industry

The return on investment from AI goes beyond corporate rhetoric. Companies are investing significant amounts to use and customize AI tools, while tech companies demand substantial investments to develop the models that power chatbots and agents.

This dynamic has created a multi-trillion-dollar industry, and measuring the success of AI beyond mere time savings could be crucial to proving its utility and avoiding the bursting of an AI bubble.