The integration of Artificial Intelligence (AI) in language education transforms how second language (L2) learners gain exposure and engage socially with the target language. This study investigates how AI tools—such as chatbots, virtual assistants, and intelligent tutoring systems—enhance L2 exposure by simulating conversations, giving adaptive feedback, and supporting interaction beyond the classroom. Drawing on sociolinguistic perspectives, this research explores how AI-mediated communication influences language input, learner identity, and communicative competence. The study also examines how learners’ motivation and social dynamics shape language use within AI platforms. It argues that AI is not merely a technological tool, but an emerging social agent that mediates language learning through meaningful interaction. By bridging sociolinguistic theory and digital learning, this paper highlights the potential of AI to provide authentic, socially contextualized second language experiences, aligning with evolving educational needs in the digital age.