50+
employees
About HARNETS
Next-generation AI network infrastructure for extreme token production efficiency
HARNETS focuses on AI cluster networking and delivers full-lifecycle solutions covering cluster network planning, construction, performance tuning, and day-to-day operations.
Company overview
Inventor of ZCube, covering the full lifecycle of AI cluster networking
HARNETS (上海驭驯网络科技有限公司) focuses on AI cluster networking and follows the principle of strengthening compute with the network while cutting cost and raising efficiency. The company turns original network architecture into replicable products, tools, and delivery capability across planning, build-out, tuning, and operations.
4
core technologies
70%+
share of employees in technical roles
180+
papers and patent filings combined
Figures as of August 2026
Technology origin
From a SIGCOMM paper to production
ZCube-related work was published at ACM SIGCOMM 2025, first proposing the ZCube AI cluster networking architecture and rethinking large-model cluster network infrastructure with a new underlying interconnect logic.
Trade hierarchy for efficiency, and determinism for performance
HARNETS is committed to turning original architecture into products, control software, toolchains, and delivery services that can be deployed at scale.
Learn more about ZCubeCore capabilities
Four core technologies across the full lifecycle of AI cluster networking
One-stop AI cluster networking delivery with integrated hardware and software, helping customer clusters go live faster.
AI cluster networking
ZCubeNext-generation AI cluster networking architecture
Replace the traditional multi-tier tree with a fully flat interconnect, remove Spine-layer switches, and combine single-rail plus multi-rail hybrid access with dedicated routing so GPU communication inside the cluster takes shorter, more balanced paths.
Learn about the productAI computing tuning
YCOSAI computing tuning system
For large-scale AI workloads, systematically tune training/inference frameworks, communication libraries, network configuration, and host configuration.
Learn about the productAI computing operations
XOPSAI computing operations system
For large-scale training and inference on AI clusters, build an integrated operations platform across compute, network, and storage for faster problem localization and efficient troubleshooting.
Learn about the productProfessional services
Full Lifecycle ServicesComplete delivery from planning to go-live
One-stop delivery of network devices, compute-network tuning, and operations services to keep AI cluster networks stable, communication efficient, and SLAs met, helping clusters go live faster.
Learn about the productStart with the network
Make the next AI data center more efficient, starting with the network
Whether you are building a new cluster, upgrading an existing network, tuning performance, or deploying intelligent operations, we can assess how the network can unlock more effective compute.