Shardflux alternatives with no session limit
19 sandbox providers with no session limit you can use instead of Shardflux. Agent37 Cloud has the lowest hourly price, $0.006 for 2 vCPU and 4 GiB.
Updated
Shardflux, for reference
ShardfluxServerless VMs for cloud agents that park when idle and keep their state.
IsolationFirecracker
2 vCPU · 4 GiB$0.140 / hr
Free tier30 days of Pro
Max sessionNot listed
19 alternatives to Shardflux 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 priceNo session limitgVisor$0.006per hour
Lizard Sandboxes
Firecracker microVM sandboxes for AI agents.No session limitFirecrackerLower vCPU price$0.016per hour
$0.018per hour
Bunny Sandbox
Isolated cloud sandboxes for AI agents, run on gVisor.No session limitgVisorLower vCPU price$0.060per hour
Sandbox0
Long-running agent sandboxes with durable storage.Bills on memory onlyNo session limitgVisor$0.060per hour
$0.062per hour
Northflank Sandboxes
MicroVM sandboxes for running untrusted code.No session limitMicroVMLower vCPU price$0.067per hour
Prime Sandboxes
Isolated microVM sandboxes for AI agents and RL.No session limitMicroVMLower vCPU price$0.090per hour
CreateOS Sandbox
Hosted Firecracker microVM sandboxes for AI agents.No session limitFirecrackerLower vCPU price$0.119per hour
$0.150per hour
Blaxel
Sandboxes that pause when idle and resume with state.Bills on memory onlyNo session limitMicroVM$0.166per hour
$0.166per hour
HopX
Firecracker microVM sandboxes for AI agents.No session limitFirecrackerCapture with the hopx CLI$0.166per hour
Superserve
Firecracker microVM sandboxes that pause and resume.No session limitFirecracker$5 to start, plus $95 when you add billing$0.166per hour
PandaStack Sandbox
Firecracker microVM sandboxes for AI agents.No session limitFirecracker$5.40 usage credit every month$0.173per hour
$0.200per hour
Tensorlake Sandboxes
MicroVM sandboxes for AI agents and AI-generated code.No session limitMicroVMFree plan, $0 forever$0.200per hour
Beam Sandboxes
Isolated, secure environments for running untrusted code at scale.No session limitContainerFilesystem or live memory$0.227per hour
Orgo
Cloud Linux and Windows desktops that AI agents control by API or MCP.No session limitFull VMClone a computer, or launch from a template snapshotNot listedper hour
Side by side
Shardflux first, then the 19 alternatives
Provider
Isolation
vCPU / hr
GiB / hr
Free tier
Max session
GPU
- Isolation
- Firecracker
- vCPU / hr
- $0.040
- Free tier
- 30 days of Pro
- Isolation
- gVisor
- vCPU / hr
- $0.001
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.008
- Free tier
- 7-day trial
- Isolation
- Full VM
- vCPU / hr
- $0.009
- Free tier
- Free trial with 25 hours
- Isolation
- gVisor
- vCPU / hr
- $0.020
- Free tier
- Not listed
- Isolation
- gVisor
- vCPU / hr
- Included
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.015
- Free tier
- $5 credit each month
- Isolation
- MicroVM
- vCPU / hr
- $0.017
- Free tier
- Not listed
- Isolation
- MicroVM
- vCPU / hr
- $0.020
- Free tier
- Not listed
- Isolation
- Firecracker
- vCPU / hr
- $0.036
- Free tier
- 500 free credits
- 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
- $0.054
- Free tier
- $5.40 / month
- Isolation
- Full VM
- vCPU / hr
- $0.100
- Free tier
- $10 credit
- Isolation
- MicroVM
- 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
- Not listed
- Free tier
- Not listed