Lower-priced Shardflux alternatives
33 lower-priced sandbox providers 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
33 lower-priced alternatives to Shardflux
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
$0.010per hour
Lizard Sandboxes
Firecracker microVM sandboxes for AI agents.No session limitFirecrackerLower vCPU price$0.016per hour
$0.018per hour
$0.029per hour
Celesto Cloud
Cloud computers for AI agents, each in a microVM.MicroVMLower vCPU priceSnapshot and resume keep processes intact$0.030per hour
Containarium Cloud
Hosted Linux boxes for AI agents, reached over SSH.ContainerLower vCPU priceFree tier$0.040per hour
$0.045per hour
Mosaic Sandbox
Linux microVM sandboxes for coding agents.FirecrackerLower vCPU priceRestore sandboxes from a saved snapshot.$0.050per 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
DigitalOcean MicroVMs
Lightweight virtual machines that run a container image in their own kernel and pause when idle.FirecrackerLower vCPU priceCheckpoints save memory and disk$0.078per hour
Vers
Linux computers you can branch, checkpoint, and restore.Full VMCommits and checkpointsStarting credit$0.080per hour
Prime Sandboxes
Isolated microVM sandboxes for AI agents and RL.No session limitMicroVMLower vCPU price$0.090per hour
$0.090per hour
Oblien Workspace
Hosted microVM workspaces for AI agents.FirecrackerLower vCPU priceMemory snapshots keep RAM and processes. Disk archives are separate.$0.092per hour
$0.099per hour
Anthropic Code Execution
Sandboxed Python and bash containers that Claude runs through the Anthropic API.Container1,550 free hours per month$0.100per hour
$0.100per hour
ix
Cloud VMs with up to 100 vCPUs, billed by usage.Full VMLower vCPU priceKeeps memory, disk and devices$0.101per hour
BytePlus AI Cloud Native Sandbox
Isolated microVM sandboxes for AI inference, reinforcement learning and model evaluation.MicroVMLower vCPU price$0.103per hour
$0.105per hour
$0.110per hour
Novita Sandbox
Cloud sandboxes for AI agents to run code and browsers.Lower vCPU price2 regions$100 promotional credit$0.117per hour
CreateOS Sandbox
Hosted Firecracker microVM sandboxes for AI agents.No session limitFirecrackerLower vCPU price$0.119per hour
Caged
Isolated microVM sandboxes that record every agent action.FirecrackerFree plan, 5 sandboxes a day$0.120per hour
$0.120per hourDigitalOcean Harness Runtime
Managed microVM sandboxes for AI agents and their code.FirecrackerLower RAM priceSnapshots and checkpoints, $0.05 per GiB-month$0.126per hour
Collimate
Live-fork microVM sandboxes for RL post-training and coding agents.FirecrackerLower RAM priceDemo key, free with no card$0.128per hour
Freestyle VMs
Full Linux virtual machines for AI agents.Full VMLower RAM price10 on Free, 1,000 on Hobby, 12,000 on Pro$0.132per hour
Everstack
Open-source platform that runs isolated sandboxes for AI agents.Snapshots and templates$5 credit, valid 30 days after signup$0.133per hour
Side by side
Shardflux first, then the 33 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
- Full VM
- vCPU / hr
- $0.005
- Free tier
- Not listed
- 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
- MicroVM
- vCPU / hr
- $0.014
- Free tier
- Not listed
- Isolation
- MicroVM
- vCPU / hr
- $0.015
- Free tier
- $5 credit
- Isolation
- Container
- vCPU / hr
- $0.020
- Free tier
- Free tier
- Isolation
- Full VM
- vCPU / hr
- $0.012
- Free tier
- Not listed
- Isolation
- Firecracker
- vCPU / hr
- $0.025
- Free tier
- Not listed
- 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
- Firecracker
- vCPU / hr
- $0.022
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.040
- Free tier
- Starting credit
- Isolation
- MicroVM
- vCPU / hr
- $0.020
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.045
- Free tier
- $5 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.030
- Free tier
- Free tier, no credit card
- Isolation
- Container
- vCPU / hr
- $0.027
- Free tier
- Free Basic plan
- Isolation
- Container
- vCPU / hr
- $0.050
- Free tier
- 1,550 hours / month
- Isolation
- Full VM
- vCPU / hr
- $0.050
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.029
- Free tier
- Not listed
- Isolation
- MicroVM
- vCPU / hr
- $0.035
- Free tier
- Not listed
- Isolation
- Full VM
- vCPU / hr
- $0.053
- Free tier
- 7-day trial with a paid ChatGPT subscription
- Isolation
- MicroVM
- vCPU / hr
- $0.025
- Free tier
- $50 credit
- Isolation
- Not listed
- vCPU / hr
- $0.035
- Free tier
- $100 credit
- Isolation
- Firecracker
- vCPU / hr
- $0.036
- Free tier
- 500 free credits
- Isolation
- Firecracker
- vCPU / hr
- $0.060
- Free tier
- Free plan
- Isolation
- Full VM
- vCPU / hr
- $0.060
- Free tier
- 30-day free trial
- Isolation
- Firecracker
- vCPU / hr
- $0.044
- Free tier
- Not listed
- Isolation
- Firecracker
- vCPU / hr
- $0.040
- Free tier
- Free demo
- Isolation
- Full VM
- vCPU / hr
- $0.040
- Free tier
- Free plan
- Isolation
- Not listed
- vCPU / hr
- $0.067
- Free tier
- $5 credit