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How TypingMind's solo developer reportedly earned $10,000 in ten days

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Solo developer Tony Dinh launched TypingMind, a desktop chat interface for ChatGPT that lets users search chat history and organize conversations. Shortly after OpenAI released its ChatGPT API in March 2023, he built and shipped the product within roughly a day and a half. Users supplied their own OpenAI API keys, so Dinh avoided server costs that scale with usage, and he charged $9 while the product was still in beta. According to Dinh's own account in a podcast interview, the product earned about $1,000 on day one and more than $10,000 within ten days. He credited the result largely to an audience of around 90,000 Twitter followers he had built over two years by sharing his revenue and experiments publicly.

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