why this Model thing works on @Controller but doesnt work on @RestController

when i try

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

@Controller
public class ArticleController {

`@GetMapping("/articles")`
`public String getArticles(Model model) {`
    `List<Article> articles = articleService.findAllArticles();`
    `model.addAttribute("articles", articles);`
    `return "articleList";`
`}`

`@GetMapping("/article/{id}")`
`public String getArticleById(@PathVariable Long id, Model model) {`
    `Article article = articleService.findArticleById(id);`
    `model.addAttribute("article", article);`
    `return "articleDetail";`
}`

}

it works, but exact same code with @RestController intead of @Controller
don’t work