Below are 5 altcoins in the field of artificial intelligence (AI) predicted to have explosive potential in 2025:

1. **Fetch.ai (FET)**: Fetch.ai is a decentralized AI platform focused on optimizing energy and logistics. The project has established many partnerships and has practical applications in the Internet of Things (IoT) and transportation. citeturn0search5

2. **SingularityNET (AGIX)**: SingularityNET is a blockchain protocol that enables developers to create, share, and monetize AI services in a decentralized manner.

3. **Ocean Protocol (OCEAN)**: Ocean Protocol provides an ecosystem that allows individuals and businesses to exchange and monetize data securely and transparently, supporting AI applications.

4. **Numeraire (NMR)**: Numeraire is the token of Numerai, an AI-based hedge fund where data scientists from around the world can contribute predictive models to improve investment strategies.

5. **Cortex (CTXC)**: Cortex aims to provide AI models on the blockchain, allowing smart contracts to execute complex AI applications.

Note that the cryptocurrency market is highly volatile and carries risks. Before investing, you should conduct thorough research and consider your own risk tolerance.

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