GraphQL is a query language and server-side runtime that allows developers to fetch specific data from an API, whereas graph databases are explicitly designed for analyzing relationships between data entities. Unlike relational databases, which rely on pre-defined constraints and transactions, graph databases use nodes, edges, and properties to store and analyze data. Graph databases are particularly useful for data scientists who need to perform complex queries on relationships that would be expensive or impossible in relational databases. While GraphQL can be used with a variety of data sources, including graph databases, they serve different purposes and offer distinct advantages, making it essential to consider the specific needs of each project before choosing a technology stack.