Here are three notable AI-focused cryptocurrencies that are actively integrating artificial intelligence technologies and could be of interest for the future:

1. **$FET (Fetch.ai)**

Fetch.ai is a decentralized machine learning platform that enables autonomous "agents" to perform tasks, optimize systems, and make decisions in real-time. It is designed to bring AI and blockchain together to create decentralized networks for various applications like supply chain optimization, smart cities, and more.

2. **$AGIX (SingularityNET)**

SingularityNET allows developers to create, share, and monetize AI services on its decentralized platform. It’s an AI marketplace powered by blockchain, aiming to provide a decentralized platform for various AI services, ranging from machine learning models to AI algorithms. The project is well-known in the AI and blockchain space.

3. **$OCEAN (Ocean Protocol)**

Ocean Protocol focuses on providing data marketplaces that allow individuals and organizations to securely share, access, and monetize data for AI applications. It aims to democratize data by allowing people to own and control their data while enabling AI projects to access valuable datasets.

These AI-related cryptocurrencies are pushing the boundaries of how blockchain and artificial intelligence can be integrated, making them worth considering for long-term growth in the AI category.