Nubank, a major digital financial services platform serving over 114 million customers, has partnered with OpenAI to enhance customer experience and internal operations. The company is utilizing OpenAI's GPT-4o and GPT-4o mini models to power an AI-powered assistant that resolves 55% of Tier 1 customer inquiries, reducing chat response times by 70%. Additionally, Nubank has implemented an internal enterprise search tool for employees and a call center copilot to assist human agents, improving efficiency and customer satisfaction. AI
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RANK_REASON This is a product integration announcement by a major company using existing OpenAI models, not a new model release or a significant industry shift.