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Startups race to build in-house AI models as fintech joins in

Startups are accelerating efforts to develop their own AI models rather than rely on those from OpenAI and Anthropic, driven by cost pressures, a desire to cut dependence and a push for greater control. Legal AI startup Harvey launched an in-house model based on Moonshot AI’s open-weight Kimi K3 after its gross margin turned sharply negative. Healthcare, customer support, fintech, coding and design startups are also building or considering custom models.