Promptiff

Compare prompts with AI output or two drafts of one text.

3 followers

Compare prompts with AI output or two drafts of one text.

3 followers

Promptiff is a visual canvas for comparing instructions with AI output or two versions of a long text. Paste both texts, locate changed sentences and inspect candidate matches against the originals. Switch between word, Git, character and semantic views. Start with a literal preview; semantics needs a configured model. The open-source CLI and Agent Skill run locally; remote embeddings require explicit upload consent. Similarity is a review clue, not a correctness score.

Free

Launch tags:Open Source•Developer Tools•Artificial Intelligence

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Promoted

Maker

📌

Hey Product Hunt, I’m Branton, the maker of Promptiff. I kept finding that a polished AI draft could quietly drop a requirement from an earlier prompt or add something no one asked for. Promptiff puts the prompts and chosen output side by side so you can inspect those changes sentence by sentence. The default comparison stays local; semantic matching can use a local model, and remote inference is opt-in. It's open source, with a CLI and Skill for Agent workflows. I'd love feedback on how you review AI-generated documents and which comparison view helps you most. Similarity scores are clues, not a verdict.

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2mo ago

Maker

Use Promptiff, no more AI slop!

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2mo ago

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