Backblaze Publishes Q4 2025 Network Stats: Data Reveals the Rising Dominance of Neoclouds and AI Workflows

Backblaze, Inc., the high-performance cloud storage platform for the AI era, released its Q4 2025 Network Stats report, identifying a sharp rise in AI-driven data traffic to neoclouds and signaling a shift toward AI-native network behavior optimized for large-scale model training and inference.

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“Few forces are reshaping network behavior faster than AI,” said Brent Nowak, Technical Lead Network Engineer at Backblaze. “This report gives the industry a clear view into how AI is driving the shift.”

The report, which follows Backblaze’s Q3 Network Stats analysis, isolates how artificial intelligence is reshaping global network infrastructure. Q4 data shows massive datasets increasingly moving in short, sustained bursts and concentrating strongly in the US-East region—a departure from diffuse internet traffic patterns as data gravity is now pulling storage, compute, and network design into tighter alignment.

Backblaze observed neocloud traffic increasing from July through November, peaking in October. Together, these patterns suggest AI data movement is concentrated and sustained. This reflects tighter alignment between storage, compute, and network design.

Key findings from the Q4 2025 Network Stats Report include:

• AI traffic concentrates in US-East region: Q4 data shows AI-driven transfers clustering near neocloud compute hubs in Northern Virginia, New York, and Atlanta, underscoring the importance of low-latency connectivity for model training workloads.
• High-magnitude AI flows become the norm: Using its “magnitude” metric—bits transferred per unique IP address—Backblaze validated a shift away from many-to-many internet traffic toward sustained, high-throughput connections between specialized storage and compute systems.
• Large-scale data migrations accelerate: Migration traffic spiked from August through October, driven by private fiber onboarding of large datasets.
• US-West still crucial for consumer traffic: Our US-West to ISP-regional traffic still led in total traffic volume as exchanges bring Backblaze closer to consumer networks, where it can deliver traffic with lower latency.

“Few forces are reshaping network behavior faster than AI,” said Brent Nowak, Technical Lead Network Engineer at Backblaze. “With B2 Overdrive, we created a direct, high-performance path between storage and the neoclouds where modeling takes place. This report gives the industry a clear view into how AI is driving the shift from internet-style traffic to the sustained, high-bandwidth flows required by AI-native infrastructure.”

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