Show HN: PolyGPT – ChatGPT, Claude, Gemini, Perplexity responses side-by-side

  • Posted 5 hours ago by ncvgl
  • 3 points
https://polygpt.app
I built PolyGPT to solve a problem I had: constantly tab-switching between ChatGPT, Claude, and Gemini to compare their responses.

  It's a desktop app (Mac/Windows/Linux) that lets you type a prompt once and see all three AI models respond
  simultaneously in a split view. Useful for:
  - Comparing technical explanations
  - Getting multiple perspectives on code problems
  - Fact-checking answers across models

  The app is free, open source, and runs locally - your credentials stay on your machine.

  Download: https://polygpt.app
  Source: https://github.com/ncvgl/polygpt

  Would love feedback from the HN community. What other features would make this more useful?

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