Unikraft
Unikraft Cloud provides a millisecond-native compute platform that cold-starts workloads in under 10 milliseconds and supports up to 100,000+ VM instances per server using lightweight unikernel technology. The platform enables sandboxes, AI agents, headless browsers, and serverless functions to scale to zero when idle and resume statefully, with deployment options including on-premises, bring-your-own-cloud, or dedicated hosts. Its advanced snapshotting technology allows forking live virtual machines—including databases and sub-agents—in milliseconds for parallel workflows.
- Developer Tools
- Software Only
- Artificial Intelligence
- AI Agents
- Enterprise Software
Funding
Funding not disclosed
Founders
Product
Problem
Traditional cloud compute platforms suffer from slow cold-start times, often taking seconds to minutes to spin up new instances, which severely limits the responsiveness of sandboxes, AI agents, and other latency-sensitive workloads. Additionally, low instance density per server drives up infrastructure costs and reduces the economic viability of running large-scale, short-lived compute tasks.
Solution
Unikraft Cloud delivers a specialized compute layer that cold-starts any workload in under 10 milliseconds, enabling near-instantaneous provisioning of sandboxes, AI agents, and other dynamic applications. The platform achieves up to 100,000+ VM instances per server through lightweight unikernel technology, providing VM-grade isolation without the overhead of traditional virtualization. Its advanced snapshotting technology allows users to fork a live virtual computer—including databases, sub-agents, and parallel headless browsers—in milliseconds, dramatically accelerating parallel workflows. The platform offers flexible deployment options including on-premises, bring-your-own-cloud (BYOC), and dedicated hosts, giving teams full control over their infrastructure stack while reducing compute costs by 10-100×.
Target Audience
Primary customers are engineering teams building sandbox environments, AI agents, and latency-sensitive applications that require rapid scaling, as well as platform teams seeking high-density, cost-efficient compute infrastructure for parallel workloads.
Features
- Sub-10ms cold start for all workload types, enabling instant sandbox and AI agent spin-up
- Ultra-high density of 100K+ VM instances per server, maximizing hardware utilization
- Live VM forking technology that duplicates running instances (including children) in 10ms for parallel debugging, build sessions, or browser retrieval
- VM-grade isolation with unikernel-based security, eliminating traditional hypervisor overhead
- Flexible deployment models: on-premises, BYOC, or dedicated hosts for full-stack ownership
- 10-100× better unit economics compared to conventional cloud compute platforms
- Stateful scale-to-zero with checkpoint and rewind capabilities for resuming workloads in milliseconds
- Network shield microVM that filters egress traffic and holds credentials, so untrusted code can use APIs without exposing keys
- Vertical scaling of memory and vCPUs while instances run, allowing workloads to grow and shrink based on demand
- GPU snapshots and NVIDIA vGPU support, assigning GPUs only while instances run and freeing them on suspend
- Sandbox plugin providing command execution, interactive shell, and file transfer into running microVMs via CLI, dashboard, JavaScript SDK, and kubectl exec
- Dockerfile-based image builds, eliminating the need for kernel-level image construction