For users seeking to manage their finances effectively, a dedicated costs endpoint allows them to check their daily spending.

OpenAI recommends utilizing the Costs endpoint or the Costs tab in the Usage Dashboard for accurate financial tracking, as these tools align with billing invoices.

On December 4, 2024, OpenAI launched the Usage API, a tool designed for enterprises to monitor their activity across the OpenAI API.

This API enables users to programmatically assess their API usage and associated costs, significantly enhancing budget oversight.

Designed with scalability, security, and compliance in mind, the Usage API assists enterprise teams in managing costs and optimizing workflows.

It provides detailed monitoring of token usage, allowing users to track their activity by minute, hour, or day, and filter data by model, API key, project ID, and user ID.

However, OpenAI cautions that the Usage API may not always perfectly align with costs due to potential discrepancies in usage and spending records.