Art dealer Helly Nahmad has gotten out of jail, well, if not free, at least unexpectedly early.

Mr. Nahmad, 36, has been released from federal prison five months into the one-year-and-one-day sentence he received for operating an illegal gambling business from his Trump Tower home.

The art dealer, scion of the billionaire Nahmad family of Monaco, has been transferred to a halfway house in the Bronx after being incarcerated at the Federal Correctional Facility in Otisville, N.Y., since June, his lawyer confirmed today.