OpenAI Blog · Jun 26, 2025
Customizable, no-code voice agent automation with GPT-4o
Reviewed by Errol Vogt, Site support technician & online learning analyst · original summary · editorial policy
Customizable, no-code voice agent automation with GPT-4o. 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. This update is relevant for small-office operators tracking changes in their tools.
Operator takeaway: For operators: review whether 'Customizable, no-code voice agent automation with GPT-4o' affects your current setup before relying on it in production.
ai automation phone release