OpenAI's API now offers a feature called prompt caching, which automatically applies discounts to inputs the model has recently processed. This means that if a user submits similar requests multiple times, they will receive lower prices for subsequent queries. The goal is to make the service more cost-effective and efficient for users who frequently interact with the same information. --- Why it matters: This matters because prompt caching can significantly reduce costs for developers and researchers who rely on OpenAI's API for tasks such as natural language processing or text generation, allowing them to allocate resources more effectively. Source: https://openai.com/index/api-prompt-caching