Summary: Cursor updates AI agent demo and model selection

Why It Matters: The changes show how the product handles complex tasks and multiple AI models. This helps developers understand the tool's power and flexibility.

What Changed:

• Updated the interactive demo to show an "In Progress" task for analyzing usage patterns.
• Added new steps to the demo showing the AI agent searching files and drafting implementation plans.
• Changed the featured model in the "Stay on the frontier" section from "Auto Suggested" to "Gemini 3 Pro."
• Added Japanese and Traditional Chinese language options to the footer.