The rapid advancement of artificial intelligence (AI) techniques has opened up new opportunities to revolutionize various fields, including operations research and in particular various components of the optimization process. This survey paper explores the integration of AI with optimization (AI4OPT) to enhance its effectiveness and efficiency across multiple stages, such as parameter generation, model formulation, and solution methods. By providing a comprehensive overview of the state-of-the-art and examining the potential of AI to transform optimization, this paper aims to inspire further research and innovation in the development of AI-enhanced optimization methods and tools. The synergy between AI and optimization is poised to drive significant advancements and novel solutions in a multitude of domains, ultimately leading to more effective and efficient decision-making.