<ul><li>AT&T receives 40 million customer service calls annually, requiring efficient categorization and analysis to prevent customer churn.</li><li>Initially using the costly ChatGPT for call sorting, AT&T switched to a cheaper, faster open-source AI system developed in-house.</li><li>The open-source solution, composed of multiple smaller models, reduced costs to 35% of the ChatGPT setup with increased processing speed.</li><li>AT&T's shift to open-source AI demonstrates improved efficiency and cost-effectiveness in managing customer service calls.</li></ul>

AT&T's switch from ChatGPT to open-source AI helped it hang on to thousands of customers

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