Hello, tell please, really Grasshopper 3D free (or I am mistaken)?
Grasshopper is currently available as a free, downloadable plug-in for Rhino V5 for Windows.
Grasshopper is now included in the Work In Progress version of Rhino V6 for Windows which is available to Rhino V5 for Windows users…
I don’t know if Grasshopper for V5 will still be available for download after V6 is officially released.
In all likelihood. Grasshopper will be included in future versions of Rhino (so still free in the same way it’s free now). Although it’s not entirely clear yet whether the GH beta process will be tied to the Rhino beta process, or whether it will be a separate project while in beta.