The rapid advancement of Artificial Intelligence (AI) is revolutionizing writing education, particularly in English as a Foreign Language (EFL) contexts. This comprehensive review explores the transformative potential of AI-powered writing tools, with a specific focus on large language models like ChatGPT, in enhancing writing skills and learning experiences. The research synthesizes emerging studies demonstrating AI's capacity to provide immediate, personalized feedback, support language learning, and address critical educational challenges such as the achievement gap and lack of individualized instruction. While most research looks at how ChatGPT can be used to give feedback and assess students' work, this study takes a different approach. Instead, it focuses on how ChatGPT can help students develop their ideas when they start writing. This research is different from other studies because it looks at how well ChatGPT works as a tool for brainstorming, which fills an important gap in our knowledge about using AI in writing education. Instead of studying how ChatGPT can check and evaluate writing, it explores how it can help students come up with ideas in the early stages of writing. This new way of looking at ChatGPT helps us understand how AI can support students when they first start writing, showing us there's more to these tools than just checking finished work. The findings of this study can help teachers create better task-based activities for students who are learning English as a foreign language.