CI involves the use of automation and collaboration tools to automatically build and test software applications, whereas CD involves the use of automation and collaboration tools to automatically deploy new versions of the application to different environments. 

Continuous Integration (CI) involves the use of automation and collaboration tools to automatically build and test software applications whenever new code is committed to the repository. 

Continuous Delivery (CD) involves the use of automation and collaboration tools to automatically deploy new versions of the application. 

https://www.geeksforgeeks.org/difference-between-continuous-integration-and-continuous-delivery/