RT Journal Article T1 General-purpose AI models as essential inputs in downstream markets: the need for a strict standard regarding mandatory access A1 Zapata Sevilla, José K1 Inteligencia artificial - Derecho y legislación K1 Mercado financiero - Innovaciones tecnológicas AB General-purpose AI models have emerged as a disruptive technology with paramount spillover economic effects across industries. The owners of such models, namely big tech enterprises, can leverage their dominance in generalpurpose AI models to expand into existing or new downstream markets. However, competition law is poised to constrain this expansion effectively. Nevertheless, there is uncertainty about the legal standard when assessing a refusal to deal in the case of access to general-purpose AI models. While EU competition law judicial practice reveals an adversary tendency against big tech enterprises leveraging in downstream markets, there is a case for adopting a narrower standard regarding access to general-purpose AI models.General-purpose AI models have emerged as a disruptive technology with paramount spillover economic effects across industries. The owners of such models, namely big tech enterprises, can leverage their dominance in generalpurpose AI models to expand into existing or new downstream markets. However, competition law is poised to constrain this expansion effectively. Nevertheless, there is uncertainty about the legal standard when assessing a refusal to deal in the case of access to general-purpose AI models. While EU competition law judicial practice reveals an adversary tendency against big tech enterprises leveraging in downstream markets, there is a case for adoptinga narrower standard regarding access to general-purpose AI models. PB Oxford University Press YR 2024 FD 2024-08-27 LK https://hdl.handle.net/10630/39228 UL https://hdl.handle.net/10630/39228 LA eng NO José Zapata Sevilla, General-Purpose AI Models as Essential Inputs in Downstream Markets: The Need for a Strict Standard Regarding Mandatory Access, GRUR International, Volume 73, Issue 10, October 2024, Pages 948–958, https://doi.org/10.1093/grurint/ikae122 NO PID 2020-113447RB-100. ‘La digitalización de los mercados financieros (aspectos jurídicos)’. IP: Isabel Fernández Torres DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026