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VAST Data sells a software platform that stores and serves up massive amounts of data fast enough for AI computers to use.
VAST Data makes the storage layer that sits underneath artificial intelligence. When companies train or run AI models, the computers doing the thinking need to pull enormous piles of data — training files, images, documents, model weights — quickly and constantly. If the storage is slow, the expensive chips sit idle. VAST sells a software platform that stores all that data and feeds it to the machines fast, and it is built to scale from a single rack up to huge AI data centers.
The company's pitch is that it replaces the tangle of separate storage systems many big companies used to run. Older setups often split data across different boxes for fast "hot" data and slower "cold" archives. VAST's software treats storage as one big pool and uses clever tricks — including compression and a way of storing data that uses far less space than traditional methods — to keep costs down while keeping speed high. Customers choose it largely because AI workloads are unforgiving: they need both speed and capacity at the same time, and VAST is designed for exactly that combination. VAST sells to the enterprises and AI data centers building out this new wave of computing, and its business has grown fast as the AI boom pushed demand for storage that can keep up. It is a private company, backed by venture investors, so it does not report public earnings, but it has been valued in the tens of billions of dollars. Its main competition comes from big storage players like Dell Technologies and Pure Storage, plus the storage arms of cloud giants such as Amazon Web Services and Microsoft Azure — though those clouds are also potential customers rather than only rivals.
The simple way to see the business: AI is only as useful as the data it can actually reach, and VAST sells the plumbing that makes sure the data is always there, always fast, and not absurdly expensive to keep. If AI spending keeps climbing, the storage underneath it has to grow too, and that is the bet VAST is selling.
Saved answer · last researched 15 Nov 2026