Comment by NathanKP

The features page has a pricing table: https://github.com/features/actions

It is totally free for public repos. For private repos:

- Free accounts get 2000 free minutes

- Pro accounts get 3000 free minutes

- Team accounts get 10k free minutes

- Enterprise accounts get 50k free minutes

Additional runner minutes are:

- Linux: $0.008 per min

- Windows: $0.016 per min

- macOS: $0.08 per min (yeah that's not a typo, it is copied straight from the page, macOS is mad expensive)