reflection-ai
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Ioannis Antonoglou Learned to Make Machines Play. Now He Wants Them to Work for Everyone.
The Reflection AI co-founder helped build AlphaGo, AlphaZero and MuZero. His next wager is that powerful AI agents should be open enough for others to inspect, adapt and run.
Misha Laskin
Misha Laskin is the co-founder and CEO of Reflection AI, a New York lab building open-weight frontier models and autonomous coding agents. A theoretical physicist by training (Yale, University of Chicago), he led reward modeling for Google DeepMind's Gemini and worked in reinforcement learning at Berkeley and DeepMind before launching Reflection in 2024 with AlphaGo co-creator Ioannis Antonoglou. In 2025 the company raised roughly $2 billion at an $8 billion valuation, positioning itself as America's open-source answer to DeepSeek.
Stephanie Zhan
Stephanie Zhan is a General Partner on Sequoia Capital's early-stage team, where she has been backing founders from the first check since 2015. A Stanford computer science graduate who grew up across Hong Kong and Beijing during the early internet era, she brings a global lens and a deep technical instinct to bets on AI, developer tools, and the physical world. She was first partner to Linear, Reflection AI, Skild AI, Ricursive Intelligence, Mach Industries, Middesk, and Tavus - a portfolio that reads like a map of the next decade of computing. Her TED AI talk on superintelligent AI captures what makes her unusual among her peers: she's not just predicting the future, she's actively funding the people building it.