Retell AI is transforming the call center with AI voice automation powered by GPT-4o and GPT-4. 1.
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GPT-Live enables continuous voice interaction with AI, using a turnless speech model and low-latency architecture for faster, more natural conversations.
GPT‑Live‑1 brings natural, full-duplex voice conversations to the API, with stronger instruction following, custom voices, and telephony support.
We’re releasing a more advanced speech-to-speech model and new API capabilities including MCP server support, image input, and SIP phone calling support.
A new generation of voice models for natural human-AI interaction, now powering ChatGPT Voice.
Ringg’s AI agents, powered by GPT‑5.6, can resolve up to 65% of customer calls. They operate across voice, chat, WhatsApp, and web in multiple languages. The solution delivers these capabilities at a cost 90% lower than GPT‑4.1.
Learn how Genspark built a $36M ARR AI product in 45 days—with no-code agents powered by GPT-4. 1 and OpenAI Realtime API.