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Vercel AI Gateway now offers OpenAI’s GPT‑Live 1, a full‑duplex voice model that can listen and speak simultaneously. The SDK lets you start a voice session and optionally delegate work to any text model, with code examples for both patterns.
A step‑by‑step tutorial showing how to build a Just‑in‑Time masked‑call workflow with Twilio Voice, Proxy, and Sync, using a two‑bounce out‑of‑session pattern to collect a tracking code via IVR, resolve the counterpart’s number, stash it in Sync, and auto‑create a Proxy session on the fly—all deployed as Twilio Serverless Functions.
A step‑by‑step tutorial showing how to build a Twilio voice agent in PHP (using OpenSwoole) that calls OpenAI’s gpt‑4o‑mini model and can invoke an external REST API (Cat Facts) via tool‑calling, wiring everything together with Twilio Conversation Relay and a WebSocket server.
Twilio’s blog lists the nine leading conversational‑AI platforms for 2026, highlighting how the market consolidated and what capabilities matter when choosing a vendor. It details Twilio’s own infrastructure tools—ConversationRelay, Agent Connect, Orchestrator, and Memory—showing sub‑second latency and full‑stack reliability for voice and messaging.
