Abiy's new government has three opposition leaders from Ethiopian Citizens for Social Justice (EZEMA), National Movement of Amhara (NAMA), and Oromo Liberation Front (OLF).
They are Prof Birhanu Nega, Belete Mola and Merdasa Tulu as the education, innovation and technology, and culture and sports ministers respectively.
The PM's office later said that their inclusion reflects the new government's "commitment to inclusivity".