According to God of Prompt, constitutional AI prompting is a technique where engineers provide guiding principles before giving instructions to the AI model. This method was notably used by Anthropic to train Claude, ensuring the model refuses harmful requests while remaining helpful (source: God of Prompt, Twitter, Dec 16, 2025). The approach involves setting explicit behavioral constraints in the prompt, such as prioritizing accuracy, citing sources, and admitting uncertainty. This strategy improves AI safety, reliability, and compliance for enterprise AI deployments, and opens business opportunities for companies seeking robust, trustworthy AI solutions in regulated industries.