ELLA: Generative AI-Powered Social Robots for Early Language Development at Home

2026-03-12

AI Summary

This work addresses the lack of scalable, high-quality support for early language development in home environments, particularly for preschool-aged children. To this end, we propose ELLA—the first home-based adaptive language intervention system that integrates generative AI with a social robot to support children’s language learning through interactive storytelling, caregiver-defined language goals, and scaffolded dialogue. Developed via a multi-stage human-centered design process, ELLA was validated through 12 family co-design workshops and an 8-day in-home deployment. Results demonstrate sustained child engagement and yield actionable design principles for deploying generative AI–powered social robots in domestic settings, establishing a novel paradigm for early language intervention.

Technology Category

• Intelligent Robots: Human-Robot Interaction
• Humans and AI: Game Design — Procedural Content Generation & Storytelling
• Cognitive Modeling & Cognitive Systems: Social Cognition And Interaction

Application Category

• Social Networks and Social Media: Generative AI / large language models and their impact on social systems
• Semantics and Knowledge: Data modeling to support human-machine intelligence, including LLMs agents, intelligent system behavior, explanations, and user-friendly interactions
• Economics, Online Markets and Human Computation: Cost models of using LLMs in production systems

Abstract

Early language development shapes children's later literacy and learning, yet many families have limited access to scalable, high-quality support at home. Recent advances in generative AI make it possible for social robots to move beyond scripted interactions and engage children in adaptive, conversational activities, but it remains unclear how to design such systems for pre-schoolers and how children engage with them over time in the home. We present ELLA (Early Language Learning Agent), an autonomous, generative AI-powered social robot that supports early language development through interactive storytelling, parent-selected language targets, and scaffolded dialogue. Using a multi-phased, human-centered process, we interviewed parents (n=7) and educators (n=5) and iteratively refined ELLA through twelve in-home design workshops. We then deployed ELLA with ten children for eight days. We report design insights from in-home workshops, characterize children's engagement and behaviors during deployment, and distill design implications for generative AI-powered social robots supporting early language learning at home.

Problem

• early language development
• generative AI
• social robots
• home-based learning
• child-robot interaction

Innovation

• generative AI
• social robot
• early language development
• interactive storytelling
• scaffolded dialogue