PolyGPT
ChatGPT, Claude, Gemini, Perplexity responses side-by-side
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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?
HN · launched Nov 22, 2025 · 26 upvotes (top 27%) · 0 views
Niche: ai model aggregators and apis · 196 launches, 19 in the last 7 days ▼ -17% · Explore this niche →
Category and tags
- Horizontal
- Agent / copilot
- B2C
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 196 launches in ai model aggregators and apis →
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 : 642 launches clear the similarity bar, closest 8 shown.
Attention rank: #249 of 643 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 13 days after the earliest competitor.
- WhileAI · ph · 2026-09-28 · 1 upvotes · similarity 0.73
- 4 in 1 ai · ph · 2026-10-07 · 1 upvotes · similarity 0.65
- Cuey · ph · 2026-09-27 · 290 upvotes · similarity 0.64
- helloAISearch · ph · 2026-10-25 · 1 upvotes · similarity 0.61
- FrameCap · ph · 2026-10-23 · 1 upvotes · similarity 0.61
- LLM Onestop · hn · 2025-11-10 · 8 upvotes · similarity 0.60
- EsteemWay · ph · 2026-11-03 · 1 upvotes · similarity 0.60
- Askmore · ph · 2026-10-21 · 1 upvotes · similarity 0.59
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