The Diversity and Inclusion Competition at ECAI 2025 invites doctoral students to collaboratively design and develop interactive visual artefacts, analytical tools, games, or simulations that explore and reflect upon issues of diversity, equity, and inclusion (EDI) within AI research and the ECAI community. This hands-on competition will run throughout the ECAI conference and aims to encourage creative, data-driven, and thought-provoking engagement with EDI themes such as equity in AI research, diversity, inclusiveness, and bias in AI. Participants are invited to go beyond conventional visualisations (e.g., word clouds typically used to illustrate the diversity of ECAI topics) and instead produce original artefacts that stimulate reflection on how our community has evolved and how AI research contributes to advancing diversity and inclusion. Participants may draw inspiration from ECAI’s 50-year history, analysing trends in research topics, representation, or collaboration, and may use openly accessible data sources such as past ECAI proceedings, archives, or other relevant datasets.