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Fixing Qwen thinking repetition

Reddit r/LocalLLaMA / 3/21/2026

💬 OpinionTools & Practical Usage

Key Points

  • A Reddit post claims a fix for Qwen's thinking repetition by using a system prompt borrowed from Claude, which reportedly eliminates the issue.
  • The author notes that pasting the Claude prompt 'completely fixes' repetition and that other long system prompts may also work.
  • The post provides links to an image of the system prompt and to the original Reddit thread submitted by /u/Tccybo.
  • The share is a practical tip for AI users dealing with repetitive outputs, illustrating a potential workaround for prompting.
Fixing Qwen thinking repetition

ok so I found the fix to Qwen thinking repetition. I discovered that pasting this system prompt from Claude fixes it completely. Other long system prompts might also work.

Just wanted to share in case it helps anyone else dealing with the same annoyance.

https://preview.redd.it/r3j7hesoveqg1.png?width=798&format=png&auto=webp&s=70787709165476f7525129d791bbc21b72d10fe9

submitted by /u/Tccybo
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