The best AI tools for students are those that can help them learn more effectively and efficiently. Some of the most popular AI tools for students include:

• Grammarly: Grammarly is an AI-powered writing assistant that can help students improve their grammar, spelling, and punctuation. It can also help students identify and avoid plagiarism.
• QuillBot: QuillBot is another AI-powered writing assistant that can help students improve their writing. It can also help students summarize and paraphrase text, and generate different writing styles.
• Syntea: Syntea is an AI-powered teaching assistant that can provide students with personalized tutoring and feedback. It can also help students create study plans and track their progress.
• Gradescope: Gradescope is an AI-powered grading tool that can help teachers grade assignments more quickly and accurately. It can also provide students with feedback on their work.
• Tutor.ai: Tutor.ai is an AI-powered tutoring service that can provide students with one-on-one tutoring in a variety of subjects.
• Khan Academy: Khan Academy is an online educational platform that offers free courses in a variety of subjects. It uses AI to personalize the learning experience for each student.
• Duolingo: Duolingo is a language learning app that uses AI to help students learn new languages at their own pace.
• Photomath: Photomath is an app that can help students solve math problems by taking a picture of the problem.
• WolframAlpha: WolframAlpha is a computational knowledge engine that can answer questions on a wide range of topics, including math, science, and history.

These are just a few examples of the many AI tools that are available to students. When choosing an AI tool, it is important to consider the specific needs of the student and the task at hand.