---
id: 20260903-T0-10
title: "Claude's new system prompt really doesn't want to reproduce song lyrics"
url: https://ai.daily.yangsir.net/daily/20260903-T0-10
issue_date: 2026-09-03
publish_date: 2026-09-02T14:16:42.000Z
source_name: "Simon Willison"
source_url: https://simonwillison.net/2026/Sep/2/claudes-new-system-prompt/
---

# Claude's new system prompt really doesn't want to reproduce song lyrics

Anthropic publish the system prompts for their Claude consumer applications ( Claude.ai and the Claude mobile apps - sadly not for Claude Cowork or Claude Code). I love that they do this, and that they share not just the current prompts but historic changes to their prompts as well. They used to kee

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**来源**：[Simon Willison](https://simonwillison.net/2026/Sep/2/claudes-new-system-prompt/)

**详情页**：https://ai.daily.yangsir.net/daily/20260903-T0-10

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