The accuracy depends on the quality of the project which depends on a lot of different things - such as the overlap between images, the visual content of the images and more.
Generally, in a project which has been correctly reconstructed, you can expect the relative accuracy to be within one to three times the ground sampling distance (GSD). The absolute accuracy of a correctly reconstructed project is one to two GSD horizontally (X and Y) and one to three GSD vertically (Z).