Two modelling approaches, with ALADIN-CAMx modelling system and with WRF/Chem model, have been setup for operational air quality forecast over Slovenia and the neighbouring countries. Both modelling systems started to run operationally in year 2013. ALADIN-CAMx and WRF/Chem models use data from the same anthropogenic emission databases, but differ in most other aspects. In the present contribution both modelling systems are described and the first preliminary results of model evaluation are presented. An extensive validation and verification will be performed in the coming months.