What Is Great Expectations (GX)? Features, Pricing & Alternatives

Overview

Great Expectations is a data validation framework in which data teams declare ‘expectations’, assertions such as a column never being null or values falling within a range, and run them against data in pipelines to produce validation results and documentation. The company offers GX Core, the framework, along with an Expectation Gallery of reusable checks and integrations, and GX Cloud, a managed service.^[17] GX Cloud can be used free through a Developer option, with Team and Enterprise solutions for greater flexibility; prices for the paid options are not listed on the pricing page.^[17] Great Expectations suits data engineers who prefer to define quality as code, version it alongside pipelines and run it in orchestration tools. The approach gives precise control and costs nothing to start, but coverage depends entirely on the expectations a team writes and maintains, and the framework has less automatic anomaly detection and fewer business-user features than commercial observability platforms.