How Fair Is Microsoft’s “Fair Use”

As Microsoft moves more AI services to hybrid pricing (license plus consumption), the term “fair use” has become increasingly prominent in its documentation. Although originally associated with copyright and the legal use of AI-generated content (such as the Customer Copyright Commitment), it now doubles as a mechanism to limit AI capacity included in licensed Copilot services. It hasn’t been applied to consumption-based AI services.

Microsoft doesn’t clearly define the term “fair use” (Microsoft also uses “fair usage”). In general, the term implies that Microsoft reserves the right to manage capacity through limits, throttling, prioritization, or quota controls, which appears to be consistent with Microsoft documentation (see below).

Microsoft’s intent is to ensure its services are available to all users, but there’s no published threshold or enforcement model indicating what may trigger the limits. Any limitations appear to be subjective, allowing Microsoft the flexibility to adjust them, which it says may be based on factors such as product milestones and emerging usage patterns.