Hi @XuanHuong Luong — welcome to Figma Forum, and thanks for your interest in exploring Figma AI! 
If you’ve already upgraded to a Figma Professional plan, you should have access to AI features in supported files. That said, it’s always worth giving your tab a quick refresh — sometimes that helps trigger access when features aren’t showing up right away.
To help pinpoint what’s going on, could you confirm which product you're working in — Figma Design, FigJam, Slides, Sites, or Buzz? The AI features vary slightly depending on the tool. For example:
- In Figma Design, you might see options like rename layers, make an image, or remove background.
- In Figma Slides, you could try rewrite this or shorten.
- In FigJam, look out for sticky note summarization or sorting.
You can find more details in Figma Learn, especially in this section: Figma AI FAQ → What resources are available to learn more about Figma AI?
Hope that helps get things moving! If things still aren’t lining up on your end, feel free to reply with a screenshot of what you’re seeing — happy to take a closer look.