PolyMind
Three AIs. One question. Watch them argue.
What it does
PolyMind is a Chrome extension that sends your question to ChatGPT, Claude and Gemini at once. They read each other's answers and challenge weak points up to 5 rounds of real debate until the strongest answer survives. No single AI is right every time. Instead of switching tabs and guessing which one to trust, PolyMind puts them in the same room and makes them argue it out. Free to start, no credit card required.
Does the same job
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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:…



- MCMysti – Claude, Codex, and Gemini debate your code, then synthesizeDec 2025 · github.com · ▲216
Hey HN! I'm Baha, creator of Mysti. The problem: I pay for Claude Pro, ChatGPT Plus, and Gemini but only one could help at a time. On tricky architecture decisions, I wanted a second opinion. The solution: Mysti lets you pick any two AI agents (Claude Code, Codex, Gemini) to collaborate. They each analyze your request, debate approaches, then synthesize the best solution. Your prompt → Agent 1 analyzes → Agent 2 analyzes → Discussion → Synthesized solution Why this matters: each model has different training and blind spots. Two perspectives catch edge cases one would miss. It's like pair…
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