Features
Full Linux VM boot in <250ms via snapshot restore
Persistent filesystem and memory across sessions
Zero-cost idle: no charge when machine is asleep
Per-second billing for active compute only
Scalable vCPU (1-32) and RAM (1-128 GB) per machine
Root access, apt/pip/npm/cargo, system packages
GPU and CUDA support for ML workloads
Disaggregated compute and storage with live VM migrations
POSIX-compliant persistent storage (ext4; xfs, btrfs, OpenZFS on roadmap)
Nested virtualization for custom sandboxes
Hardware-isolated VMs with dedicated guest kernel (Cloud Hypervisor)
SSH, CLI, and HTTP API access
External URL support for MCP servers
Multi-tenant auth layer (Dedalus Auth) for secure MCP agent secrets
Trace agent executions step by step
Monitor real-time dashboards with cost tracking
Online LLM-as-judge evals for quality scoring
Automated insights with unsupervised topic clustering
SmithDB purpose-built for agent traces
Sub-second query performance across millions of traces
Full-text search with inverted index
JSON key-path filtering and trajectory queries
Self-host SmithDB inside your VPC
LangSmith Engine for autonomous issue detection and fixes
Deploy and scale agents with LangSmith Deployment
Sandboxes for safe agent-generated code execution
Fleet agents for no-code agent creation
Supports Python, TypeScript, Go, Java SDKs
