P16 is a five-year initiative led by Inria, aiming to accelerate the development of open-source AI libraries and foster thriving ecosystems around them. By supporting innovation, strengthening collaboration between academia and industry, and ensuring Europe's strategic autonomy in AI, P16 brings together researchers, engineers, and partners to scale impactful tools and solutions. Inspired by the success of scikit-learn, P16 addresses the entire data continuum, from interoperability and data preparation to model development.