Can i use my gta online character in gta v story mode?

The two modes of Grand Theft Auto V—Online and story—operate on separate game data structures. Characters, inventory, and progress in GTA Online are not designed to transfer into the single‑player story mode, and vice‑versa. Players cannot import an Online avatar or its attributes into the story campaign. This separation is standard for GTA V and is confirmed by the lack of any official feature or announcement allowing such a transfer.