Andreessen Horowitz has launched 'Oxygen,' a private GPU cluster program aimed at assisting startups with their computing needs. This initiative provides pre-secured clusters of Nvidia H100 GPUs, enabling startups to access high-performance computing resources without the long-term commitments typically associated with cloud providers. The program addresses the increasing demand for cost-effective compute solutions in the AI sector, as highlighted by a founder who noted that without GPUs from day one, startups struggle to thrive. Additionally, Luma, one of the startups utilizing the Oxygen program, reported significant benefits, allowing them to expedite the execution of their project, Dream Machine v1. This move reflects Andreessen Horowitz's understanding of the challenges faced by emerging tech companies in a competitive market.