6.77 Ai map is not yet available, the Release of DotA 6.77ai official map is not yet announce. Meanwhile while waiting for an updates. you can bookmark this page and come back here so that you can download the latest Ai map in Dota.
While waiting for the 6.77 ai map you can download 6.76c map here
Dota 6.77 updates. Goodnews gamers, Dota 6.77 Ai is now ready to be played. With a changelog and patches. Though this map isn't official from Icefrog. Download 6.77 AI plus map