GPT-Live is coming to Vapi: private beta and public waitlist

Vapi has launched a limited private beta and public waitlist for GPT-Live, OpenAI’s full-duplex speech-to-speech model, with broader access planned in the coming months. Unlike traditional voice-agent architectures that separately use speech recognition, a language model, and text-to-speech, GPT-Live combines these functions in one model, enabling more natural interruptions, backchanneling, lower latency, richer interpretation of tone and emphasis, and improved handling of details such as names, numbers, and addresses. Vapi positions the model as particularly useful for human-sounding, high-stakes applications such as patient communication, identity verification, and customer support. Because Vapi’s platform is model-agnostic, beta users can deploy GPT-Live with their existing tools, phone numbers, testing systems, and observability stack without rebuilding agents, while retaining the option to use modular pipelines where independent component selection and tuning provide greater control.

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