Highlights from the Claude 4 system prompt
Highlights from the Claude 4 system prompt
An analysis of the system prompts for Anthropic's Claude 4 models (Opus and Sonnet). The author digs through the recently shared prompts, treating them as an unofficial manual, and highlights interesting aspects related to model personality, safety, style, and undocumented features from leaked tool prompts.
Note
this was both fun and informative.
Published
2025
Summary
An analysis of the system prompts for Anthropic's Claude 4 models (Opus and Sonnet). The author digs through the recently shared prompts, treating them as an unofficial manual, and highlights interesting aspects related to model personality, safety, style, and undocumented features from leaked tool prompts.
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