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

16 points by ncvgl 13 hours ago

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?

benterix 5 hours ago

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

A web app

Reply View 0 replies

sidcool 4 hours ago

Make a web all pls. I'm not going to install a native app from unknown source.

Reply View 0 replies

BeetleB 7 hours ago

Just FYI, Open WebUI has this feature built-in.

Reply View 0 replies

hotgeart 13 hours ago

Does it need an API Key or it's like an 'iframe' of the web version?

Reply View 2 replies

natoucs 12 hours ago

iframe - you got it - it embeds the web apps

Reply View | 1 reply
- nextaccountic 6 hours ago
  
  A better feature would be to select one pf the responses as the best one, and use it as the context for all LLMs, as if they were sent by each ome
  But this would require API access instead of embedding web apps
  
  Reply View | 0 replies

unstatusthequo 8 hours ago

Now you just need to add a judge node that compares the responses, fact checks them, and outputs the best response of the three. Although this makes another issue of which model is that judge.

Reply View 4 replies

theoldgreybeard 5 hours ago

Pewdiepie did something like this where all the AIs looked at each others answers and voted on the highest quality answer.
Democracy!
It worked pretty well until he updated them to know that poorly performing agents would get deleted and replaced. Then they started conspiring against him.
(19:43 for relevant part) https://youtu.be/qw4fDU18RcU

Reply View | 0 replies
adamisom 2 hours ago

easy, let them all judge then? you guessed it...

Reply View | 0 replies
irilesscent 7 hours ago

Make a jury or blind models making a case for the best response and choose a random model to be the judge.

Reply View | 0 replies
mschulkind 7 hours ago

Just give me a day to vibe code an interface to side by side judge judging models...

Reply View | 0 replies