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Backblaze's Q4 2025 network report reveals a significant shift in traffic patterns driven by AI workloads. Neocloud operators (GPU-as-a-service providers) and AI training infrastructure are generating concentrated, high-bandwidth flows that differ from traditional internet traffic. The data shows peaks in neocloud traffic from July through November, particularly in US-East regions like Northern Virginia. Migration traffic over private fiber connections also spiked during this period. While these peaks have subsided, baseline traffic levels remain elevated, suggesting AI workloads are fundamentally reshaping network behavior by creating tighter alignment between storage, compute, and network design.

Backblaze spots AI workloads pushing bigger network flows