Cloud cost management is a challenging task due to various reasons including lack of visibility, difficulty in planning and allocating budget, and vendor lock-in. Many organizations struggle to predict their cloud costs, as they only know the final bill on the last day of the month, making it hard to reduce costs after the fact. Additionally, choosing the right resources can be challenging, with different prices and capacities across various cloud providers. Moreover, some cloud providers offer alternative pricing options, such as preemptible instance pricing, which can provide significant cost savings but require automation to take advantage of. Vendor lock-in is another major issue, making it difficult for organizations to switch between cloud providers. However, tools like CAST AI can help by providing visibility into cloud performance and enabling businesses to manage their cloud costs efficiently.