AI4EU is the first European Artificial Intelligence On-Demand Platform and Ecosystem with the support of the European Commission under the H2020 programme. The AI4EU Platform will bring the AI stakeholders and AI resources together in one dedicated place, overcoming fragmentation, so that AI-based innovations (research, products, solutions) will be accelerated. The AI4EU Platform will act as the one-stop-shop for anyone looking for AI knowledge, technology, services, software, and experts. AI4EU will function as European AI market driver, offering a critical mass of resources, community networking effects, and rapid development and growth.