Copied from this page (https://inleo.io/premium):

• Orange checkmark next to your username
• Priority in "For You" feeds
• Edit threads after you post them
• Add Bold, Italic and other "Markdown Styling" to your threads
• Publish longer threads
• Favorites menu
• Themes

And planned for the future:

• NFT profile picture (PFP)
• Auto-AI summarize your Long-Form Posts into Threadstorms