GravityWrite uses a credit-based system. When you subscribe, you receive a set number of credits each month (500 for Plus, 2,500 for Pro). As you generate content — whether text, images, or videos — credits are deducted based on the type and quality. For example, a blog post costs ~33 credits, an image ~6 credits, and a video ~20 credits. Credits are shared across all features, so you choose how to allocate them.