> For the complete documentation index, see [llms.txt](https://docs.thinkagents.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.thinkagents.ai/faqs/faq/think-agent-standard-protocol/how-is-an-nfi-different-from-an-nft.md).

# How is an NFI different from an NFT?

While NFTs are typically static collectibles or media files, NFIs (Non-Fungible Intelligences) are dynamic, evolving AI agents. Here’s how they compare:

* NFTs represent fixed assets like art or metadata.
* NFIs embed logic, memory, and user data, enabling personalized AI behavior.
* NFTs have limited functionality and upgradability.
* NFIs are fully composable and customizable, and they enable learning over time.