Seed + Series A: Sail raises $80M in funding from Sequoia, Kleiner Perkins, and other investors
Blog post from Sail Research
Sail announced that it has raised $80 million in total funding, including a Sequoia Capital-led seed round and a Series A led by Kleiner Perkins, with participation from investors such as Redpoint Ventures, Theory Ventures, Vine Ventures, CRV, A*, and Abstract, as well as prominent individual angels. The company is building infrastructure for long-horizon AI agents, offering low-cost inference for open models and durable sandbox environments intended to run workloads for days or weeks. Sail says its approach combines chip selection, custom inference engines, and a global fleet controller to improve utilization and reduce the cost-latency tradeoff, potentially allowing less time-sensitive agents to use substantially more compute per dollar. It is already working with companies including Parallel, Detail, Jack and Jill AI, and Quadrillion on agent deployments involving trillions of tokens, and its team draws experience from NVIDIA, OpenAI, Google, and trading firms.
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