Global greenhouse gas emissions have surged to unprecedented levels, prompting a strong focus on decarbonization. Hydrogen, especially when produced renewably, emerges as a promising CO2-free energy vector for industry, transport, and power sectors. However, the transition to hydrogen involves significant technical challenges, particularly in continuous production and safe storage. Classified as a hazardous substance under the SEVESO III Directive, hydrogen poses risks of major accidents, necessitating rigorous Quantitative Risk Assessment (QRA). Accurate consequence estimation is critical for reliable risk assessment. This study conducted a benchmark analysis of Phast, HyRAM, and ALOHA software tools to evaluate their capabilities in modelling the dispersion and ignition of gaseous hydrogen from pressurized tank leaks, focusing on the accuracy of their results.