Transparency in billing is essential for building trust with customers, especially as costs can change rapidly in environments utilizing AI. Traditional billing systems often leave customers in the dark until they receive an invoice, which leads to confusion and frustration. Metronome addresses this issue by integrating billing into the product experience, allowing users to see real-time spending and manage their billing directly within the product. This approach enhances customer confidence and engagement. Metronome offers three main features to improve the billing experience. The cost preview API provides customers with accurate cost estimates before they make decisions, helping to prevent bill shock. For instance, a developer can see the expected cost of running a query before executing it. The embeddable billing console allows users to access their billing information, view invoices, and make payments without leaving the application, streamlining the process significantly. Finally, customer lifecycle notifications keep users informed about important events like trial expirations or contract renewals, enabling proactive engagement and reducing churn. These features not only enhance user experience but also empower companies to manage billing more effectively. OpenAI leverages Metronome’s APIs to provide visibility into usage and costs for millions of users, highlighting the practical benefits of this integrated approach. By ensuring users have the information they need at critical moments, Metronome transforms billing from a confusing process into a seamless part of the overall product experience.