Retell AI is developing a platform for automating customer calls using GPT-4o and GPT-4.1. The no-code system allows businesses to create natural-sounding voice agents that can handle real-time conversations without the need for scripts or holding customers on hold. According to Retell AI, this approach can reduce call costs and improve customer satisfaction. --- Why it matters: This matters because it could help companies streamline their customer service operations, reducing both costs and frustration for customers. Engineers might be interested in how Retell AI's platform integrates GPT-4o and GPT-4.1 to create voice agents that can handle complex conversations. Source: https://openai.com/index/retell-ai