Igor Babuschkin
Igor Babuschkin is an AI engineer who helped build AlphaStar at Google DeepMind and then helped found Elon Musk's xAI. Before that, he moved from particle physics at CERN into AI research. He worked at OpenAI and co-authored the Codex paper, which was submitted in July 2021. In July 2023 Musk unveiled xAI with Babuschkin among its twelve founding members, and in August 2025 he left xAI to start Babuschkin Ventures. As of October 2026, he is co-founder and chief executive of River AI, which came out of stealth in June 2026.
- Now at
- River AI
- Works
- 190
Publication numbers from OpenAlex, as of 15 October 2026. Citations and h-index are hidden because this OpenAlex record may be incomplete or mix in other authors.
Timeline
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By 2019
From particle physics to AlphaStar
Moving from particle physics at CERN into AI research at Google DeepMind, he helps build AlphaStar, which defeats top-ranked human StarCraft players in 2019.
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2021
The Codex paper
The Codex paper, Evaluating Large Language Models Trained on Code, is submitted in July 2021 with him as a co-author. Before xAI, he holds roles at DeepMind and OpenAI.
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July 2023
A founding member of xAI
Elon Musk unveils xAI in July 2023, and Babuschkin is one of its 12 founding members.
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August 2025
Leaving xAI for Babuschkin Ventures
In August 2025 he leaves xAI to launch Babuschkin Ventures, an investment fund for safe and trustworthy AI projects.
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June–August 2026
River AI out of stealth
He founds River AI, a Palo Alto company that comes out of stealth in June 2026. The company announces $1.1 billion across its Series Seed and Series A rounds in August 2026.
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As of October 2026
Chief executive of River AI
He is co-founder and chief executive of River AI.
Sources and credits
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- Igor Babuschkin built Elon Musk's AI supercluster and now wants to give that power back to ordinary users - Startup Fortune
- [2107.03374] Evaluating Large Language Models Trained on Code
- Igor Babuschkin Quits Elon Musk’s xAI to Launch AI-Safety-Focused Venture Capital Firm – Outlook Business
- Elon Musk Announces xAI and Its 12-Man Team: Here’s Who They Are | Observer
- SpaceXAI - Wikipedia
- River AI Raises $1.1B Across Series Seed and Series A to Build a Personal AI Stack – Unite.AI
- River AI raised $1.1bn to let companies train and keep their own models
- xAI Co-Founder's River AI Raises $1.1 Billion to Help Companies Train and Own Their AI Models