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AI that never stalls.
GPUs that never sit idle.

Clockwork’s software-driven fabric maximizes GPU utilization and makes AI workloads resilient to failure. Runs anywhere and supports any Ethernet, RoCE or InfiniBand fabric.

Software Driven Fabrics Drive
Peak Cluster Utilization

Cross Stack Observability

catch and resolve issues rapidly

Workload Fault-Tolerance

avoid costly checkpoint restarts

Performance Acceleration

eliminate contention & congestion

“At Uber…every millisecond matters—latency spikes don’t just hurt customer experience, they directly impact driver retention and revenue..Their unique innovation can greatly help Uber expedite the detection and fault-localization of networking issues: from hours to minutes.. Clockwork’s software-driven fabric…helps us deliver what matters most: improved infrastructure utilization, enhanced resiliency, and..a better experience for…millions of people..”
Albert Greenberg
Chief Architect Officer, Uber
“…we are building the foundation for AI at planetary scale..Clockwork’s approach aligns perfectly with ours, and together we’re creating an AI infrastructure that is not only powerful and reliable, but ready to support the most demanding innovations of the future.”
David Power
CTO, NScale
“…exactly what our customers need when running large-scale AI workloads where any disruption can be costly…works across different network configurations without requiring hardware lock-in…solutions that focus on the communication layer — which is often a bottleneck — are becoming increasingly important for delivering the performance and reliability…our customers expect.”
Danila Shtan
CTO, Nebius
“Our mission at DCAI is…to not only serve researchers, startups, and enterprises today, but also to build the sovereign foundations of tomorrow’s innovation… Gefion is a game-changing resource driving breakthroughs in quantum computing, drug discovery, advanced weather forecasting and beyond…Clockwork enables us to operate Gefion seamlessly and reliably…The result is a compute-efficient, fault-tolerant infrastructure that researchers and industries can trust — lowering costs, eliminating wasted GPU cycles, and helping us deliver a sovereign AI capability second to none.”
Dr. Nadia Carlsten
CEO, DCAI
“…Clockwork helps us deploy GPU clusters faster and with greater consistency. Their observability and rapid localization of fabric issues not only reduce deployment times but also validate the reliability of our infrastructure, ensuring clients’ AI workloads run on clusters built for performance, resilience and scale.”
Tom Sanfillippo
CTO, White Fiber
“As AI infrastructure scales to tens of thousands of GPUs for training and inference, the bottleneck has shifted from compute to communication. With accelerators running in lockstep, a single link flap, congestion spike or straggler can stall progress and crater utilization. The operational priority is utilizing real-time fabric visibility for faster fault isolation and recovery to keep workloads moving instead of looping through costly restarts. And as Mixture of Experts (MoE) models with high rank expert parallelism proliferate, the all-to-all exchange intensifies, raising the bar even higher for GPU communication efficiency.”
Dylan Patel
Founder, CEO, and Chief Analyst, SemiAnalysis
“MI350X series systems with ROCm software and Pollara NICs provide a strong foundation for performance and reliability in AI training and inference. As deployments expand, ecosystem innovation, such as Clockwork’s software-driven approach, adds complementary capabilities that help ensure efficiency and consistency at scale.”
Vamsi Boppana
SVP, AI, AMD
“At Broadcom, our focus has always been on delivering Ethernet-centric infrastructure that scales AI with both performance and efficiency. Clockwork’s software-driven fabric adds an essential layer of agility and observability that enhances the power of our silicon. With proactive fleet monitoring and seamless failover, Clockwork enables platforms such as our Tomahawk 6 and Jericho4 to realize their full potential in flexibility, uptime, and AI performance. Together, we’re driving open, adaptable fabrics that allow enterprises to build AI infrastructure that is resilient, high-performing, and future-ready.”
Ram Velaga
Senior Vice President and General Manager, Core Switching Group, Broadcom

The Bottleneck in AI is Communication, Not Compute

AI at scale relies on tightly synchronized workloads across complex infrastructures. Performance is not limited by how fast each GPU is, but by how fast thousands of GPUs can talk to each other.

40%
Time Spent on
Network Communications
30-55%
Cluster
Utilization
2.3-4.5
Hours Lost
Per Day

Even the smallest disruption causes entire jobs to fail, wasting hours of expensive GPU time.

NCCL NFS TCP/UDP NVSHMEM UCX NVMe-oF Ethernet libfabric S3 InfiniBand MPI ibverbs GDS ROCEv2 Communication libraries, I/O Protocols Network APIs / Transport protocols Training data ingestion Checkpoint writes Application/user IO Result/response flows Parameter Exchange Model load/fetch Query/request traffic Control traffic CPU CPU App GPU GPU CPU CPU App GPU GPU CPU CPU App GPU GPU Compute Cluster Storage AI Factories

Stringent I/O demand

Synchronized, stateful flows

Multiple complex fabrics

Frequent failures

Software Driven Fabrics Eliminate
The Communication Bottleneck

Performance is accelerated by optimizing traffic flow, and workloads keep running
even when failures occur, preventing expensive checkpoint rollbacks.

FleetIQ runs your AI workloads at peak cluster utilization.

Clockwork FleetIQ CPU CPU App GPU GPU CPU CPU App GPU GPU CPU CPU App GPU GPU Compute Cluster Storage AI Factories Stateful
Fault-Tolerance Efficient Performance Cross-stack Visibility

Cross Stack Observability

Catch slow or failing workloads and see how they’re correlated with infrastructure issues.

Workload Fault Tolerance

Avoid costly checkpoint restarts. Workloads keep running even when underlying infrastructure fails.

Performance Acceleration

Dynamically eliminate congestion and contention. Guarantee performance with QoS.

Prevent Link Flaps From Crashing Your Jobs.

26.28 mins Time to First Job
Failure in Brand New Cluster

In GPU clusters, network link failures are constant—and they can crash critical AI jobs in an instant. Clockwork makes those failures irrelevant. Watch how our software fabric keeps jobs running, uninterrupted, even when a live network cable is pulled.

100% Software-Driven Fabric
For Multi-vendor Compute, Storage and Networks

Clockwork’s software-driven fabric runs anywhere – cloud or on-prem, NVIDIA or AMD, InfiniBand/RoCE or Ethernet, NVMe or object storage. It continuously optimizes your AI infrastructure, steering traffic to prevent congestion and dynamically routing around faults to keep workloads from crashing. Stop wasting GPU cycles – your most valuable and expensive resource.

Learn More

Stop wasting GPU cycles. Start scaling smarter.
Clusters must deliver high uptime while running at maximum efficiency.

Turn your GPU clusters into a competitive advantage—not a cost center.