AI Cover Letter Generator is a tool that uses artificial intelligence technology to generate personalized cover letters for job seekers. Its importance lies in solving the problem of time-consuming and difficult-to-personalize manual cover letter writing. The main advantages of this product include fast generation speed, taking only a few seconds; accurate matching between the job seeker's resume and job description to generate highly personalized content; and free unlimited access to core services. The background of this product comes from the developer's own painful experience of manually writing cover letters during their job search. In terms of pricing, the core service is completely free. It is positioned to help job seekers quickly and efficiently complete high-quality cover letters, increasing their job search success rate.