GS Open font is a free and open-source typeface designed by Gustavo E. Ferrari. It is a sans-serif font with a modern and minimalist design that is suitable for a wide range of applications, from print and digital media to branding and signage. The font comes in four weights (Light, Regular, SemiBold, and Bold) and includes Latin and Cyrillic script support. GS Open is licensed under the SIL Open Font License, which allows for unlimited use, distribution, and modification of the font.