Amparo Alonso Betanzos
University of Coruña
Frugal AI: Sense, Sustainability and Technological Sovereignty
Professor at the Universidade da Coruña and coordinator of the LIDIA Laboratory (CITIC); visiting
professor at NTNU (Norway). Her research focuses on sustainable and responsible AI. She has
served as President of the Spanish Association for Artificial Intelligence (AEPIA); she is a
Senior Member of IEEE and ACM, and a Member of the Royal Academy of Sciences. She was a member
of the AI Advisory Council (CAIA) of the Spanish Ministry for Digital Transformation, and
contributed to the drafting of Spain's AI R&D&I Strategy and the HispanIA 2040 Report of the
National Office for Foresight and Strategy. She currently serves on the Spanish Committee on
Research Ethics and the AI Ideas Laboratory of AESIA.
Abstract
The success of Artificial Intelligence has rested on an implicit premise: more data, larger
models, and greater computing power yield better results. This logic has worked, but it carries
a cost that rarely makes the headlines. Training a state-of-the-art model can emit thousands of
tonnes of CO₂ and consume hundreds of thousands of litres of water. By 2030, AI is estimated to
account for more than 30% of global energy consumption — a trajectory that, left uncorrected, is
unsustainable environmentally, economically, and geopolitically.
Frugal AI emerges as a response to this challenge: an approach that seeks to achieve the best
possible performance at the lowest resource cost, both during training and inference. The goal
is not to sacrifice quality, but to rethink how it is achieved. The strategies we will explore
include improving training data quality, developing more energy-efficient architectures, and
learning techniques that enable useful models to be built from fewer examples and with lower
energy consumption.
Beyond environmental sustainability, frugal AI has strategic implications. It reduces dependence
on massive computing infrastructure, opens the field to institutions and countries with fewer
resources, and favours systems that are more transparent and interpretable. In this sense, it
aligns with European priorities for developing AI that is safe, sovereign, and responsible.