Gabor Halasz was born in Hungary in 1985. He studied dance at the Budapest Contemporary Dance Academy from 2005 to 2007. In 2007, he gets into the european programme D.A.N.C.E. II created by the choreographers William Forsythe, Angelin Preljocaj, Wayne McGregor and Frédéric Flamand.
During 2 years, he takes part to several pieces such as "Equivalances" and "Hypothetical Streams II" from W. Forsythe, "Metamorphoses" and "Success Story" from F. Flamand, "Zukunft Heute" from R. Siegel, "Polar Sequences" from W. McGregor and "A nos Héros" from A. Preljocaj.
In august 2009, F. Flamand engages him to the Ballet National de Marseille