Anthropic's Claude 4 System Prompts: A Deep Dive into LLM Engineering

This article delves into the system prompts for Anthropic's Claude 4 large language model. It analyzes both the officially released prompts and leaked tool prompts, revealing strategies behind the model's design, including preventing hallucinations, guiding effective prompting, maintaining safety, and handling copyright concerns. The article details Claude 4's features like chain-of-thought reasoning, search tools, and Artifacts (custom HTML+JavaScript apps), and examines its safety and copyright restrictions. It offers valuable insights into the development and application of large language models.