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Sail Research builds infrastructure for AI agents that perform extended tasks.
Sail Research develops infrastructure for long-horizon AI agents, including APIs compatible with OpenAI and Anthropic models and support for customer LoRA fine-tunes and reinforcement learning rollouts. Founded in 2025, the company is based in California, US, and was co-founded by Neil Movva and Samir Menon. In June 2026, it raised Series A funding led by Kleiner Perkins, with CRV, Theory Ventures, Vine Ventures, Redpoint Ventures, and Abstract Ventures participating; the round was part of a larger USD 80 million seed and series A funding.
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