Microsoft Introduces Pay-As-You-Go Pricing for New AI Agent, Copilot Cowork
Microsoft has implemented a pay-as-you-go billing model for its newly launched artificial intelligence agent, Copilot Cowork, marking the first change to its software charging methods in two decades. This shift is in response to the substantial computing costs associated with running advanced AI systems. Copilot Cowork, designed to automate office tasks such as drafting documents, creating spreadsheets, and managing emails, will bill customers based on the computing power consumed per task, in addition to requiring a Microsoft 365 Copilot subscription.
Microsoft has introduced a pay-as-you-go pricing model for its new AI agent, Copilot Cowork, signifying the company's first change in software billing in two decades. This new approach, launched on Tuesday, aims to address the soaring costs of artificial intelligence operations.
Copilot Cowork functions as an AI agent capable of independently performing various office tasks, including drafting documents, building spreadsheets, and sending emails. While a paid Microsoft 365 Copilot subscription is still mandatory, each task executed by Copilot Cowork will now be billed separately, based on the computing power it utilizes.
This "agentic" AI tool can take an assignment and operate autonomously, sometimes for several hours. Microsoft reports one customer used it to compare nearly 4,000 documents within hours, and the assistant can prepare complex meetings by synthesizing emails, internal documentation, and calendars.
Charles Lamanna, Microsoft's executive vice president for Copilot and agents, explained that the new pricing is necessary due to the significantly higher computing power required for AI systems compared to search engines or chatbots, and the wide variation in usage among different users. He likened the new plan to "filling up your gas tank at the pump," noting that a single overarching user license no longer makes sense.
To help prevent unexpected high costs, the service is initially disabled by default. Companies can also set spending caps per employee, team, or department. Users will have the option to choose between different AI models—more or less powerful, and thus more or less expensive—to further manage their bills. Currently, Copilot Cowork runs on Anthropic models like Opus 4.8 and Sonnet 4.6, with the state-of-the-art GPT 5.5 available for "Frontier" tier customers. A more economical model, Cowork 1, is anticipated for everyday tasks.
Microsoft is not alone in adopting usage-based billing. Its programming subsidiary, GitHub, moved to this model in early June, reportedly leading to increased bills and dissatisfaction among some developers. Anthropic, a prominent US AI company, also announced in early June that its latest cutting-edge models would soon be billed by usage rather than being included in subscriptions.
