The article discusses the impact of the AV1 Image File Format (AVIF) since its introduction in 2019 by the Alliance for Open Media, highlighting its adoption and advantages in improving web image delivery through smaller file sizes and enhanced quality. As AVIF celebrates its fifth anniversary, it demonstrates significant momentum, with major platforms like Vimeo reporting increased usage, and plans for future enhancements are underway to ensure its continued relevance in the evolving media landscape.