MarketFish lets founders test products with 128 simulated AI consumers

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MarketFish is an open-source tool hosted on GitHub that allows users to simulate a consumer market before launching a product. It populates the simulation with up to 128 AI-driven consumer agents to model buying behavior and reactions. The project is designed to help entrepreneurs and developers validate product-market fit without real-world testing. It was shared on Hacker News, where it attracted modest early attention with 12 points and one comment.

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