Backblaze Data Shows AI-Driven Traffic Shifts Toward Neoclouds in Q4 2025
Event summary
- Backblaze's Q4 2025 Network Stats report reveals a sharp rise in AI-driven data traffic to neoclouds, with sustained bursts concentrated in the US-East region.
- AI traffic peaked in October 2025, showing high-magnitude flows between specialized storage and compute systems.
- Large-scale data migrations accelerated from August through October 2025, driven by private fiber onboarding.
- US-West remained crucial for consumer traffic, with lower-latency exchanges to ISP-regional networks.
The big picture
Backblaze's findings underscore the accelerating shift toward AI-native network behavior, where storage, compute, and network design are tightly aligned. This trend reflects broader industry movements toward specialized infrastructure for large-scale model training and inference, signaling a departure from traditional internet traffic patterns.
What we're watching
- Infrastructure Alignment
- How sustained, high-bandwidth flows will affect neocloud design and optimization for AI workloads.
- Regional Concentration
- Whether the US-East region's dominance in AI traffic will persist or shift to other hubs.
- Data Migration Trends
- The pace at which large-scale data migrations will continue, driven by private fiber adoption.