PolyGPT
ChatGPT, Claude, Gemini, Perplexity responses side-by-side
Details
- External ID
- 46013984
- Source
- HN
- Company
- —
- Product
- PolyGPT
- Website domain
- polygpt.app
- Launched
- Nov. 22, 2025
- Cohort
- —
- Upvotes
- 26
- Upvotes percentile
- 0.7336244541484717
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
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?
Enrichment
- Theme
- AI visibility and marketing tools
- Vertical
- Horizontal
- Function
- Agent / copilot
- Audience
- B2C
- AI stance
- AI feature
- Project type
- Hobby / open-source project
- Normalized one-liner
- compare multiple ai models side-by-side
- Manually corrected
- False
Could you build this?
Yes PolyGPT is an Electron/Tauri desktop app that sends a single prompt to multiple vendor LLM APIs (OpenAI, Anthropic, Google) in parallel and renders the responses side by side.
Discussion
20 comments analyzed.
Competitors mentioned: Open Web UI, Ninja Chat
Concerns raised: Need access to native frontends of individual LLM providers, Don't want to trust third-party with API keys, Friction of installing native app from unknown source, Electron app overhead vs web browser control, Can't access original provider frontends in webapp format
Feature requests: Build as web app instead of native/Electron app, Generate multiple responses from different models and merge them, Let users select best response and use as context for other models, Models vote/judge each other's answers for quality ranking
Competitors
Other products that read as similar to this one — 194 launches clear the similarity bar, closest 8 shown.
Attention rank: #73 of 195 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 12 days after the earliest competitor.
- WhileAI · ph · 2026-09-28 · 1 upvotes · similarity 0.73
- Cuey · ph · 2026-09-27 · 290 upvotes · similarity 0.63
- LLM Onestop · hn · 2025-11-10 · 8 upvotes · similarity 0.59
- AI Visibility Score · ph · 2026-09-25 · 1 upvotes · similarity 0.54
- GeoCited · ph · 2026-09-24 · 1 upvotes · similarity 0.54
- LLMnesia · hn · 2026-04-03 · 8 upvotes · similarity 0.53
- skya.one · ph · 2026-09-29 · 11 upvotes · similarity 0.53
- AI Visibility Checker · ph · 2026-09-15 · 1 upvotes · similarity 0.52
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a agent / copilot tool for Agriculture yet.