A formed article comprising a gas barrier layer that is formed of a material including at least an oxygen atom, a carbon atom, and a silicon atom, the gas barrier layer including an area (A) where an oxygen atom content rate gradually decreases, and a carbon atom content rate gradually increases in a depth direction from a surface, the area (A) including a partial area (A1) and a partial area (A2), the (A1) having a specific oxygen, carbon and silicon content, and the (A2) having a specific oxygen, carbon and silicon content; a method of producing the same; an electronic device member; an electronic device. The formed article exhibits an excellent gas barrier capability, excellent bendability, excellent adhesion, and excellent surface flatness.