Google AI Studio adds monthly Cloud credit claims for the Gemini API

Google added a way to claim monthly Google Cloud credits within AI Studio on November 13. Primary Google AI Pro and Ultra subscribers can redeem their credits in the workspace and put them toward Gemini API charges. First-time claimants can create a Google Developer Program profile and link a Cloud Billing account in the same flow. The studio also shows available credits and remaining balances.

Pro includes $10 a month in Cloud credits, Ultra 5x includes $40, and Ultra 20x includes $100, all denominated in US dollars. Gemini API users on prepaid billing must first add at least $5 or the applicable local-currency equivalent. Google announced monthly Cloud credits as a developer benefit for Pro and Ultra in January. The November update brings the claim and billing setup together inside AI Studio.

When monthly credits arrive and expire

Google's Developer Program FAQ ties the grant date to the first activation of developer benefits. Someone who activates the benefit on November 20 would expect the next grant on December 20. The clock runs independently of the subscription payment date. Each grant lasts 12 months from its own issue date, so several months of credit can be available at once. Google applies the credits nearest expiration first.

AI Studio shows unclaimed credits or the remaining balance in its side menu. Future grants can apply automatically to a designated billing account. Credits already applied stay with that account, while grants you have yet to redeem can go to another eligible account. If the billing account uses a currency other than US dollars, Google converts the amount at the exchange rate in effect when the credit is redeemed.

Which balance pays for API requests first

Take a Pro subscriber who claims $10 in monthly credits and adds $5 in prepaid funds to the billing account for an app. Google's billing documentation says eligible Cloud credits pay for Gemini API usage first. In that example, the first $10 in charges would use the monthly grant and subsequent usage would draw down the paid balance. Spending the same grant on another eligible Cloud service would leave less available for the API.

The prepaid account still needs a positive balance. At zero, API requests from projects linked to that billing account can stop even if promotional credits remain. Google says usage processing can take about 10 minutes, so a long-running job may exceed the balance before it stops. Google deducts any resulting negative balance from the next top-up. AI Studio shows usage and credit balances, and its projects page shows each project's billing status.

Testing models in the AI Studio web interface draws on the subscription's daily quota. Google's plan documentation lists Gemini 4 Carbon as an Ultra model under that quota. If a developer links a paid API key after reaching the studio's daily limit, or uses that key in an external app, the model's API rates apply. The charges go to the Cloud Billing account linked to the project and can be covered by eligible credits on that account.

Google One's AI credits for extra usage in Flow and Antigravity are a separate balance. Google's Cloud Free Trial documentation also excludes the Gemini API in AI Studio from the $300 Welcome credit for new customers. The monthly developer grant that subscribers can now claim in the studio belongs to the primary Pro or Ultra subscriber.

Developer Program credits can also cover eligible services such as Firebase. When several projects share a billing account, charges from those projects go to that account. Google Cloud's cost reports can show Gemini API and other Cloud charges together. AI Studio manages the API's prepaid balance, and Google says usage can appear at different times in the two dashboards.