Simon Willison 11/25/2025

Quoting Claude Opus 4.5 system prompt

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This blog article by Simon Willison examines a specific system prompt for the Claude Opus 4.5 AI model, which instructs the AI to insist on respectful engagement from users. The piece also discusses the increasing difficulty of evaluating new large language models (LLMs) in the rapidly evolving field of generative AI.

Quoting Claude Opus 4.5 system prompt

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