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  "markdown": "Head of Realtime AI; Member of Technical Staff.\n\n- LinkedIn: https://www.linkedin.com/in/juberti\n\n## What Justin builds\n\n- [GPT-Live](https://www.anchorterminal.com/tools/gpt-live.md), graded B, 66.9/100, in Conversational voice agents. GPT-Live is OpenAI's full-duplex voice API (`gpt-live-1`), which listens while it speaks and delegates reasoning and tools to a Responses model, the Decisions API or the developer's own agent. Clients connect over WebRTC, WebSocket or SIP. Head of Realtime AI; Member of Technical Staff, researched 2026-10-27.\n\n## Works with\n\n- [Andrej Karpathy](https://www.anchorterminal.com/people/andrej-karpathy/), Co-founder, OpenAI\n- [Durk Kingma](https://www.anchorterminal.com/people/durk-kingma/), Co-founder, OpenAI\n- [Elon Musk](https://www.anchorterminal.com/people/elon-musk/), Co-founder, OpenAI\n- [Greg Brockman](https://www.anchorterminal.com/people/greg-brockman/), Co-founder, OpenAI\n- [Hannah Koch](https://www.anchorterminal.com/people/hannah-koch/), Product Manager, Codex\n- [Ian Kivlichan](https://www.anchorterminal.com/people/ian-kivlichan/), Safety researcher; credited Moderation model contributor\n- [Ilya Sutskever](https://www.anchorterminal.com/people/ilya-sutskever/), Co-founder, OpenAI\n- [John Hallman](https://www.anchorterminal.com/people/john-hallman/), Credited gpt-oss contributor; post-training researcher\n- [John Schulman](https://www.anchorterminal.com/people/john-schulman/), Co-founder, OpenAI\n- [Justin Beckwith](https://www.anchorterminal.com/people/justin-beckwith/), OpenAI engineering leader; Guardrails repository contributor\n- [Nikunj Handa](https://www.anchorterminal.com/people/nikunj-handa/), Head of Product, OpenAI API\n- [Pamela Vagata](https://www.anchorterminal.com/people/pamela-vagata/), Co-founder, OpenAI\n- [Rennie Song](https://www.anchorterminal.com/people/rennie-song/), Member of Technical Staff; Dots engineer\n- [Sam Altman](https://www.anchorterminal.com/people/sam-altman/), Co-founder, OpenAI\n- [Trevor Blackwell](https://www.anchorterminal.com/people/trevor-blackwell/), Co-founder, OpenAI\n- [Vicki Cheung](https://www.anchorterminal.com/people/vicki-cheung/), Co-founder, OpenAI\n- [Wojciech Zaremba](https://www.anchorterminal.com/people/wojciech-zaremba/), Co-founder, OpenAI\n\n## Backed by\n\n- [SoftBank](https://www.anchorterminal.com/investors/softbank/)\n- [Thrive Capital](https://www.anchorterminal.com/investors/thrive-capital/)\n- [Microsoft](https://www.anchorterminal.com/investors/microsoft/)\n- [NVIDIA](https://www.anchorterminal.com/investors/nvidia/)\n- [Altimeter Capital](https://www.anchorterminal.com/investors/altimeter-capital/)\n- [Coatue](https://www.anchorterminal.com/investors/coatue/)\n- [Khosla Ventures](https://www.anchorterminal.com/investors/khosla-ventures/)\n- [Fidelity Investments](https://www.anchorterminal.com/investors/fidelity-investments/)\n- [MGX](https://www.anchorterminal.com/investors/mgx/)\n- [Tiger Global](https://www.anchorterminal.com/investors/tiger-global/)\n\n## Questions\n\n### Who is Justin Uberti?\n\nJustin Uberti is head of Realtime AI; Member of Technical Staff.\n\n### What does OpenAI make?\n\nAnchor Terminal lists GPT-Live from OpenAI. GPT-Live is OpenAI's full-duplex voice API (gpt-live-1), which listens while it speaks and delegates reasoning and tools to a Responses model, the Decisions API or the developer's own agent. Clients connect over WebRTC, WebSocket or SIP.\n\n### Who has invested in OpenAI?\n\nThe sources our research read name SoftBank, Thrive Capital, Microsoft, NVIDIA, Altimeter Capital, Coatue, Khosla Ventures, Fidelity Investments, MGX and Tiger Global.\n\n### How are Justin's tools graded?\n\nGPT-Live is graded B, 66.9 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://openai.com/index/continuous-voice-interaction-with-gpt-live/\n- https://www.linkedin.com/in/juberti/details/experience/\n- https://www.linkedin.com/in/juberti\n- https://openai.com/index/introducing-openai/\n- https://x.com/sama/with_replies?lang=en\n- https://x.com/gdb/with_replies\n- https://x.com/ilyasut/with_replies\n- https://x.com/woj_zaremba/with_replies\n- https://openai.com/\n- https://help.openai.com/en/articles/6614161-how-can-i-contact-support\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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