Artifacts size is incorrect?

Hi,
I’m using the Core 3.1 to build my application with artifacts.
It appears the reported size is incorrect.
for example:

in this run each zip file is reported as 513 mb but when downloading the file the real size is 215 mb.

am I missing something?

I seen somewhere that it is done intentionally, showing size of unzipped artifact. Like, automatic top level archiving is ignored.

https://docs.github.com/en/actions/configuring-and-managing-workflows/persisting-workflow-data-using-artifacts

When an artifact is downloaded using the GitHub UI, all files that were individually uploaded as part of the artifact get zipped together into a single file. This means that billing is calculated based on the size of the uploaded artifact and not the size of the zip file.

oh I see. Thanks! It is kind of confusing.