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Reflection Signs More Than $1 Billion Compute Deal With Nebius

Guaranteeing access to Nvidia GB300 GPUs through 2029, the deal lets Reflection lock in scarce compute to scale its open-source model training.

Branding for Nebius at the Nebius AI UK data centre, a new facility hosting NVIDIA and other computer firms, at Ark Data Centres, in Chertsey, Britain, November 6, 2025. REUTERS/Toby Melville

Overview

  • The agreement, announced Tuesday, gives Reflection multi-year access to Nebius’s data-center capacity and Nvidia’s newest GB300 processors through the end of 2029.
  • The contract follows a June compute pact Reflection struck with SpaceX that reports say costs roughly $150 million a month and together build a multi‑provider strategy.
  • Nebius shares initially rose in premarket trade after the announcement but investor focus has shifted to the company’s heavy capital spending and how these deals will translate into cash flow.
  • Reflection was founded by two former Google DeepMind researchers and has raised large funding from backers including Nvidia as it pushes open-weight models as a customizable alternative to closed providers.
  • The deal highlights a wider industry trend of startups signing large, long-term compute contracts to overcome chip supply limits and reduce the risk of sudden access restrictions from single providers.