Customizable, no-code voice agent automation with GPT-4o

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OpenAI Blog · 2025-06-26 10:00 UTC

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Retell AI is transforming the call center with AI voice automation powered by GPT-4o and GPT-4.1. Its no-code platform enables businesses to launch natural, real-time voice agents that cut call costs, boost CSAT, and automate customer conversations—without scripts or hold times.


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