Backblaze stock surges 32% on $335M CoreWeave deal for AI data storage infrastructure

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Backblaze shares jumped 32% following a five-year, $335 million multi-exabyte data storage agreement with CoreWeave. The deal positions Backblaze to provide HDD-based storage tiers supporting AI Object Storage, helping optimize data placement for AI workloads across training, inference, and retrieval-augmented generation.

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Backblaze Secures Major Five-Year Storage Agreement

Backblaze announced a five-year storage agreement worth $335 million with CoreWeave, sending BLZE stock soaring 32.02% to $10.72

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. The Backblaze CoreWeave deal marks a significant validation of the company's enterprise storage capabilities and positions it as a critical player in AI infrastructure buildout

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. Under the multi-exabyte data storage arrangement, Backblaze will provide cost-efficient HDD-based storage capacity supporting portions of CoreWeave's managed storage infrastructure

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How AI Object Storage Powers Modern Workloads

The technology supports HDD-based storage tiers in CoreWeave AI Object Storage, helping optimize data placement across performance tiers while preserving high-performance storage resources for the demands of AI workloads

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. Customers already utilizing CoreWeave AI Object Storage with its patented LOTA distributed cache will immediately access new service tiers without any code modifications

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. Every stage of the AI lifecycle depends on the ability to store and move massive volumes of data efficiently, including storage for AI training, inference, checkpointing, data preparation, model outputs, and retrieval-augmented generation

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Why This Partnership Validates AI Data Storage Demand

"Storage is the foundation every AI workflow is built on -- without it, even the world's most powerful compute sits idle," said Gleb Budman, co-founder and CEO of Backblaze

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. The $335 million agreement represents a meaningful revenue commitment for Backblaze, which serves more than 100,000 customers worldwide

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. CoreWeave serves nine of the top ten AI model providers and operates one of the fastest-growing AI cloud platforms globally, making this partnership a significant endorsement of Backblaze's positioning in the AI era

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Market Implications and Future Outlook

The Backblaze stock surge reflects investor confidence in the company's ability to capture growing AI infrastructure spending. Nick Hoover, Vice President at CoreWeave, noted that "Backblaze has built a reputation for making complex, HDD-based storage infrastructure reliable and easy-to-consume at scale"

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. As AI model providers continue expanding their platforms and managed service offerings to support AI workloads at scale, the demand for efficient, cost-effective storage solutions is expected to accelerate. This positions Backblaze directly at the center of AI infrastructure buildout, with potential for additional partnerships as enterprises seek to optimize their cloud platform strategies for data-intensive use cases.

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