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The AI compute platform — GPU cloud, 1-Click Clusters, and workstations for training and inference
HQ: San Francisco, CA, United States | Founded: 2012 | Employees: ~400 (2026, est.) | Stage: Late Stage VC (Series D+) | Website: https://lambda.ai
Lambda was founded in 2012 by brothers Stephen Balaban and Michael Balaban as a deep-learning hardware company selling GPU workstations and servers to researchers — long before the current AI boom. That early foothold gave Lambda deep relationships with the AI research community and the operational discipline to build Lambda Cloud, its on-demand GPU cloud launched in 2020, which became one of the most popular ways for startups and labs to rent H100-class compute.
Today Lambda operates three pillars: Lambda Cloud (per-second on-demand GPU instances including H100, H200, B200, and GB300 systems), 1-Click Clusters (self-serve production clusters from 16 to 2,000+ GPUs for training and fine-tuning), and the hardware business (GPU workstations and servers). It also runs Lambda Chat, an LLM cha
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