Reflection AI has locked in more computing power. The US startup signed an AI compute deal worth more than $1bn with Nebius, the Amsterdam-based cloud provider, according to Bloomberg. The agreement runs through 2029. It gives Reflection access to Nvidia’s newest GB300 chips.

Nebius confirmed the deal. Its shares have more than doubled this year on the AI spending boom. They rose on the news before slipping later in the session.

This is Reflection’s second big capacity deal in weeks. Last month it signed a multibillion-dollar deal with SpaceX for the same class of Nvidia chips, reportedly worth about $150m a month through 2029.

Who Reflection is

Two former Google DeepMind researchers founded Reflection in 2024. It builds open-source models. The pitch is a cheaper, more customisable alternative to the closed systems from OpenAI and Anthropic.