Did rockstar games release grand theft auto v and gta online simultaneously?

Grand Theft Auto V was released in 2013 by Rockstar Games, as noted in the Wikipedia entry. The same source does not mention the release date of GTA Online. Because the evidence does not provide any information about the launch timing of GTA Online relative to GTA V, we cannot state whether the two were released at the same time. Only the release of GTA V itself is confirmed by the evidence.