Which AWS service, feature, or tool uses machine learning to continuously monitor cost and usage for unusual cloud spending?

Explanations:

Amazon Lookout for Metrics is primarily used for monitoring metrics and detecting anomalies in time series data but does not specifically focus on cloud cost and usage anomalies.

AWS Budgets allows users to set custom cost and usage budgets and receive alerts when they exceed thresholds, but it does not employ machine learning for continuous anomaly detection.

Amazon CloudWatch is used for monitoring and observability of AWS resources and applications, providing metrics and logs, but it does not specifically focus on cost anomaly detection using machine learning.

AWS Cost Anomaly Detection leverages machine learning to continuously monitor AWS spending and usage, automatically identifying and alerting users to unusual spending patterns.