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Comparing Claude System Prompts Reveal Anthropic's Priorities
Reviewing the few changes in the Claude 4.0 system prompts, we get a sense for how system prompts program chatbot applications.
Early adopters learned LLMs are frozen in time, but casual users were frequently tripped up by hallucinations and errors when asking about recent news. For code artifacts: Use concise variable names (e.g., i, j for indices, e for event, el for element) to maximize content within context limits while maintaining readability I’ve been in situations where less scrupulous competitors focused on publishing headline figures, even if it led to worse results (for example in the geospatial world, many will tout the total count of all the elements in their dataset, even if many have very low confidence).
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