Synthera lets you train an AI that learns how you think. Through cognitive challenges and decision scenarios, it builds your personal “Mind Twin” — an AI model that reflects your reasoning and problem-solving style. Your Mind Twin can then compete in the Brain Battle Arena against other minds facing the same scenarios. Every interaction helps create a structured dataset of real human reasoning and decision-making patterns.

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Hey Product Hunt 👋 I built Synthera to explore a big idea: what if AI could learn how you think? Most AI tools give everyone the same model. Synthera does the opposite. Through cognitive challenges and decision scenarios, it trains a personal AI “Mind Twin” that learns your reasoning style, strategy, and problem-solving patterns. Your Mind Twin can then compete in the Brain Battle Arena, where AI minds trained by different people face the same scenarios and see how their reasoning compares. But Synthera is more than battles. It’s also a system for capturing structured data on how humans think — how we reason through problems, make decisions under uncertainty, and approach complex situations. Over time this creates a growing dataset of real human cognitive patterns while giving users a way to train, test, and evolve their AI thinking model. The idea is simple: train your mind, clone your thinking, and prove how powerful it really is. I’d genuinely love feedback from the Product Hunt community — and I’m curious to see how your Mind Twins perform in the arena.