The development of multimodal artificial intelligence (AI) has enabled vision-language models (VLMs) to process and understand both visual and textual data simultaneously, thereby revolutionizing the field of AI. VLMs combine vision and natural language models to associate images with their respective textual descriptions, enabling advanced tasks such as Visual Question Answering (VQA), image captioning, and text-to-image search. These models utilize various learning techniques, like contrastive learning and masked language-image modeling, to map and interpret complex relations between modalities. Despite their promise, VLMs face challenges related to model complexity, dataset biases, and evaluation strategies. However, they have broad applications across image retrieval, generative AI, segmentation, and even in fields like robotics and medical diagnostics. Future research focuses on improving datasets and evaluation methods to enhance VLM reliability and applicability.