How do I enable Google's new AI Mode in Search?

I heard about Google's new AI Mode that provides conversational search results. How can I activate and use this feature?

To enable AI Mode, go to Google Search Labs and opt in for the AI Mode experiment. Once activated, you'll see an "AI Mode" toggle on your search page.

After enabling, you can ask complex questions and Google will provide detailed, conversational answers. It's great for in depth queries.