Here is a comparison of some key aspects of blockchain technology versus AI technology:

Data storage:

- Blockchain stores data across decentralized nodes in a verifiable, immutable ledger.

- AI systems collect and analyze large datasets for training models but data is controlled centrally.

Transparency:

- Blockchain networks are transparent with all transactions viewable to participants.

- AI models can be black boxes with little visibility into data use or decision logic.

Security:

- Blockchain uses cryptography, decentralization to make fraud very difficult.

- AI security vulnerable to data poisoning, model stealing, misleading outputs.

Control:

- Blockchain gives users control over assets, decentralized from authorities.

- AI systems often controlled by companies or governments raising accountability issues.

Automation:

- Blockchain executes programs via smart contracts in a set way.

- AI involves more flexible automation, learning new patterns from data.

Regulation:

- Blockchain currently lacks clear regulatory oversight in many domains.

- AI increasingly targeted for regulation regarding data rights, auditing.

In summary, blockchain offers security but limited flexibility while AI provides adaptive automation but with centralized control. Both are transforming technology in different ways.