Etherscan has introduced a new tool called "Code Reader" that employs artificial intelligence (AI) to retrieve and interpret the source code of a specific contract address on Ethereum. Users can input prompts, and Code Reader generates responses using OpenAI's language model, offering insights into contract source code. The tool enables users to understand smart contract functions, their interactions with decentralized applications, and modify the source code within the user interface. While there is growing demand for training large AI models, experts caution about the feasibility due to challenges like computing power, data synchronization, optimization, privacy, and security concerns.