In this chapter, we examine the impact of ChatGPT on language learning and teaching. We explore how this AI tool can enhance student engagement, automate language assessment, and facilitate self-learning beyond the classroom. We discuss the affordances of ChatGPT in creating personalized learning experiences, generating diverse practice materials, and providing immediate feedback. However, we also acknowledge the challenges involved in integrating AI in education such as assessment integrity, technology acceptance, and equitable access. We argue that the integration of AI in education marks a new era, requiring a reimagining of traditional teaching methods and learning experiences. We conclude by urging researchers in language learning and teaching to embrace these technological advances to ensure the continued relevance of their field in the AI-driven educational landscape.