The Global Innovation Index 2023 (GII) takes the pulse of innovation against a background of an economic and geopolitical environment fraught with uncertainty. Tracking the most recent global innovation trends, the GII finds that - despite a climate of disquiet and a decline in risk capital investment - opportunities abound as a result of the incipient Digital Age and Deep Science innovation waves. At its core, the GII 2023 reveals who is leading in global innovation, ranking the innovation performance of 132 economies and highlighting their strengths and weaknesses. In addition, it identifies the world's top 100 science and technology clusters. The GII is a "tool for action" regarding innovation policy. Governments around the world have used the GII to benchmark innovation performance, perfect innovation metrics and, ultimately, to shape evidence-based innovation policymaking. In the context of the United Nations Sustainable Development Goals (SDGs), since 2019, the GII has been recognized by the United Nations General Assembly to be a benchmark for measuring innovation, including more recently in a post-pandemic environment.