Branton Liu

Branton Liu

Maker of Promptiff | AI tools
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About

I build tools for reviewing AI-generated work. I'm the maker of Promptiff, an open-source CLI and canvas that helps people compare their prompts with AI outputs and spot possible omissions or changes. I'm exploring better ways to work with AI agents.

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Maker History

  • Promptiff
    PromptiffCompare prompts with AI output or two drafts of one text.
    Sep 2026
    • 🎉
    Joined Product HuntSeptember 23rd, 2026

Forums

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2mo ago

Promptiff - Compare AI output against every prompt you gave it

Promptiff helps you review AI-written documents against the original instructions. Select one or more prompt turns and an output, inspect sentence-level matches, and find possible omissions or additions. Switch between semantic, word, Git-style, and character views. The open-source CLI, canvas, and Agent Skill run locally; remote embeddings are optional and require an explicit choice.
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