Runtime alternatives with no session limit
29 sandbox providers with no session limit you can use instead of Runtime. Agent37 Cloud has the lowest hourly price, $0.006 for 2 vCPU and 4 GiB. Orgo, Northflank Sandboxes, Daytona, Thunder Sandboxes, Tensorlake Sandboxes and Beam Sandboxes offer GPUs, which Runtime does not.
Updated
Runtime, for reference
RuntimeFirecracker microVM sandboxes for AI agents, billed on the CPU that code uses.
IsolationFirecracker
2 vCPU · 4 GiB$0.080 / hr
Free tier100 free hours
Max sessionNo limit
29 alternatives to Runtime with no session limit
Sorted by hourly price for 2 vCPU · 4 GiB, low to high
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Agent37 Cloud
Persistent Linux sandboxes and VMs for code and agents.Lowest hourly pricegVisorLower vCPU price$0.006per hour
Krova Cloud
Firecracker microVMs with root access, billed by the minute.FirecrackerLower vCPU priceAutomatic snapshots on a tier schedule, plus manual ones$0.012per hour
Zipbox
Long-lived Firecracker microVMs for AI agents, each with its own desktop.FirecrackerLower vCPU priceNo named snapshots or templates$0.014per hour
Lizard Sandboxes
Firecracker microVM sandboxes for AI agents.FirecrackerLower vCPU priceMemory and files; restore to new sandboxes$0.016per hour
$0.018per hour
Shellbox
Linux microVMs for developers and AI agents, made and controlled over SSH.FirecrackerLower vCPU priceDuplicate copies a stopped box with its memory snapshot$0.020per hour
$0.060per hour
Orgo
Cloud Linux and Windows desktops that AI agents control by API or MCP.GPUFull VMClone a computer, or launch from a template snapshot$0.060per hour
Sandbox0
Long-running agent sandboxes with durable storage.Bills on memory onlygVisor$5 credit, one time$0.060per hour
Sailboxes
Persistent Linux VMs for long-horizon AI agents.Full VMLower vCPU price$5 credit every month$0.062per hour
Northflank Sandboxes
MicroVM sandboxes for running untrusted code.GPUCloud HypervisorLower vCPU price$0.067per hour
Buddy Sandboxes
Persistent Linux VMs that AI agents create and control through an API, SDK, CLI or MCP.Full VMLower vCPU priceNo expiry. A snapshot stays after its sandbox is deleted$0.086per hour
Prime Sandboxes
Isolated microVM sandboxes for AI agents and RL.MicroVMLower vCPU priceFilesystem checkpoints and forks. Files only, not running processes or memory$0.090per hour
Oblien Workspace
Hosted microVM workspaces for AI agents.FirecrackerMemory snapshots keep RAM and processes. Disk archives are separate.Free tier, no credit card$0.092per hour
CreateOS Sandbox
Hosted Firecracker microVM sandboxes for AI agents.FirecrackerPause, resume and forkStarting credit of 500 credits$0.119per hour
Together Sandbox
Isolated runtime environments for code from AI agents.FirecrackerSnapshot on termination keeps stateSOC 2 Type II$0.149per hour
boxd
Persistent Linux machines for devs and AI agents.MicroVMFork, snapshots, and checkpoints$30 credit with a payment method$0.150per hour
Blaxel
Sandboxes that pause when idle and resume with state.Bills on memory onlyMicroVMSnapshots and forking in private preview$0.166per hour
$0.166per hour
$0.166per hour
Superserve
Firecracker microVM sandboxes that pause and resume.Firecracker$5 to start, plus $95 when you add billingSOC 2 Type II$0.166per hour
Thunder Sandboxes
Isolated, short-lived sandboxes for agents, GPU optional.GPUFirecrackerSOC 2 Type II$0.166per hour
PandaStack Sandbox
Firecracker microVM sandboxes for AI agents.Firecracker$5.40 usage credit every monthGDPR$0.173per hour
BoxCompute
Linux VM sandboxes for AI agents, hosted in Malaysia.Full VMNo snapshots, checkpoints or forks in the public API1 regions$0.200per hour
Tensorlake Sandboxes
MicroVM sandboxes for AI agents and AI-generated code.GPUFirecrackerFree plan, $0 forever$0.200per hour
Beam Sandboxes
Isolated, secure environments for running untrusted code at scale.GPUContainerFilesystem or live memory$0.227per hour
Railway Sandboxes
Isolated Linux VMs you create on demand and destroy.Full VMDisk only. Processes and memory are not kept.4 regions$0.417per hour
Apify AI Code Sandbox
Apify Actor that runs AI-generated code in an isolated container, with MCP, REST API and shell access.Bills on memory onlyContainer1 regions$0.800per hour
xShellz Agent Shell
Always-on Linux boxes for AI agents, isolated with gVisor.gVisorFree plan, 1 box with 0.5 vCPU and 512 MBGDPRNot listedper hour
Side by side
Runtime first, then the 29 alternatives
Provider
Isolation
vCPU / hr
GiB / hr
Free tier
Max session
GPU
- Isolation
- Firecracker
- vCPU / hr
- $0.025
- Free tier
- 100 free hours
- Isolation
- gVisor
- vCPU / hr
- $0.001
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.001
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.007
- Free tier
- $25 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.008
- Free tier
- 7-day trial
- Isolation
- Full VM
- vCPU / hr
- $0.009
- Free tier
- 7-day free trial with 25 hours of compute
- Isolation
- Firecracker
- vCPU / hr
- $0.010
- Free tier
- Not listed
- Isolation
- gVisor
- vCPU / hr
- $0.020
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.030
- Free tier
- $5 credit
- Isolation
- gVisor
- vCPU / hr
- Included
- Free tier
- $5 credit
- Isolation
- Full VM
- vCPU / hr
- $0.015
- Free tier
- $5 credit each month
- Isolation
- Cloud Hypervisor
- vCPU / hr
- $0.017
- Free tier
- Free plan
- Isolation
- Full VM
- vCPU / hr
- $0.014
- Free tier
- $1 / mo
- Isolation
- MicroVM
- vCPU / hr
- $0.020
- Free tier
- Not listed
- Isolation
- Firecracker
- vCPU / hr
- $0.030
- Free tier
- Free tier, no credit card
- Isolation
- Firecracker
- vCPU / hr
- $0.036
- Free tier
- 500 free credits
- Isolation
- Firecracker
- vCPU / hr
- $0.045
- Free tier
- Not listed
- Isolation
- MicroVM
- vCPU / hr
- $0.047
- Free tier
- $30 credit
- Isolation
- MicroVM
- vCPU / hr
- Included
- Free tier
- Credit of up to $200
- Isolation
- Container
- vCPU / hr
- $0.050
- Free tier
- $200 free compute
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- $200 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.050
- Free tier
- $5 to start, plus $95 when you add billing
- Isolation
- Firecracker
- vCPU / hr
- $0.051
- Free tier
- Not listed
- Isolation
- Firecracker
- vCPU / hr
- $0.054
- Free tier
- $5.40 / month
- Isolation
- Full VM
- vCPU / hr
- $0.100
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.070
- Free tier
- Free plan, $0 forever
- Isolation
- Container
- vCPU / hr
- $0.068
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.069
- Free tier
- $5 credit
- Isolation
- Container
- vCPU / hr
- Included
- Free tier
- $5 / mo
- Isolation
- gVisor
- vCPU / hr
- Not listed
- Free tier
- 1 small box