Halasz grew up in Hungary and later lived in Belgium and the UK. After studying at the University of York and the London School of Economics, he was admitted to the Moholy-Nagy University of Art and Design Budapest. He also spent a semester at the Glasgow School of Art in 2009.
His most recent show was at the world-renowned Saatchi Gallery in London. He was the grand prize winner of the Google Photography Prize, where Halasz was chosen from 3600 entries from 82 countries around the world. Last year his group won the Epson Art Photo Award from among 150 arts universities around the world and was subsequently exhibited at Art Cologne. Both of these awards had an expert jury with members like Martin Parr, Idris Khan and Andreas Gursky.
Halasz received the first prize of Imagine 2009, an initiative of the European Year of Creativity and Innovation. The jury included Elina Brotherus, Chris Wainwright, Claude Bussac and François Hébel.
In a collaboration with Lili Zoe Ermezei they were selected to be shown at the National Design and Fashion Gallery in Vilnius, Lithuania.
His works were shown in Hungary, Germany, Belgium, Luxembourg, Sweden, Romania, Lithuania and the United Kingdom.