Pay-as-you-go pricing
Pay-as-you-go is a usage-based pricing model: You buy credits and consume them as you go. There's no recurring fee, no seats, and no monthly usage credits.
Credits are consumed based on your actual model usage, which consists of tokens sent and received, certain tool executions such as web searches, and the number of requests you make. Each model has its own price, and using an API key significantly reduces your credit consumption. For details, see How credits are consumed.
Credit packs expire one year after your last purchase. Buy more credits at any time to reset the expiry to one year.
Example: You have $100 worth of credits. Your last purchase was 7 months ago, so these credits will expire in 5 months. You buy $29 worth of credits. You now have $129 worth of credits, which will expire in 12 months.