European classrooms are facing unprecedented linguistic fragmentation. The Josefa de Óbidos Schools Group (AEJO) exemplifies this reality: 193 migrant students from 35 nationalities, with many languages spoken by only one or two students. This scenario makes traditional human mediation impossible to scale, resulting in real-time comprehension barriers, inaccessible teaching materials, and biased assessments that penalize students for their language proficiency rather than their actual knowledge.