How to unlock online mode in gta v?

The Wikipedia article on Grand Theft Auto V provides general information about the game's release, developers, setting, and single-player story. It describes the three protagonists—Michael De Santa, Franklin Clinton, and Trevor Philips—and their involvement in heists within the fictional state of San Andreas. However, the article does not include any details about the online mode, such as requirements, unlocking procedures, or access steps. For specific information on how to unlock GTA Online, you would need to consult additional sources that cover the game's online features and technical requirements.