Cloudflare Sandbox vs Shardflux
Cloudflare Sandbox costs $0.072 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Shardflux runs Firecracker microVMs and offers GPUs.
Updated
Cloudflare Sandbox
- Isolation
- Firecracker microVM
- Free tier
- None
- Max session
- Not listed
Shardflux
- Isolation
- Firecracker microVM
- Free tier
- 30-day Pro trial, no card needed
- Max session
- Not listed
What is different
8 fields differ. The rest are the same or not listed.
Cloudflare Sandbox
Shardflux
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Shardflux: $0.04
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Shardflux: $0.015
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
- Free tier
- Cloudflare Sandbox: None
- Shardflux: 30-day Pro trial, no card needed
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Shardflux: $9 / month
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Shardflux: 32 vCPU · 64 GiB
- SDKs
- Cloudflare Sandbox: TypeScript
- Shardflux: TypeScript, Python
- Integrations
- Cloudflare Sandbox: Claude Code, OpenAI Agents SDK
- Shardflux: Claude Code, MCP
Full comparison
18 fields, at each provider's list price
Cloudflare Sandboxdevelopers
Shardfluxshardflux
Pricing
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Shardflux: $0.04
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Shardflux: $0.015
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
- Free tier
- Cloudflare Sandbox: None
- Shardflux: 30-day Pro trial, no card needed
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Shardflux: $9 / month
- Billing
- Cloudflare Sandbox: Active CPU time only
- Shardflux: Active CPU time only
Limits
- Max session
- Cloudflare Sandbox: Not listed
- Shardflux: Not listed
- Idle stop
- Cloudflare Sandbox: Not listed
- Shardflux: Not listed
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Shardflux: 32 vCPU · 64 GiB
- Concurrent sandboxes
- Cloudflare Sandbox: Not listed
- Shardflux: Up to 200
Platform
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Shardflux: Firecracker microVM
- GPU
- Cloudflare Sandbox: Not listed
- Shardflux:
- Snapshots
- Cloudflare Sandbox:
- Shardflux:
- Pause and resume
- Cloudflare Sandbox: Not listed
- Shardflux:
Developer
- SDKs
- Cloudflare Sandbox: TypeScript
- Shardflux: TypeScript, Python
- Integrations
- Cloudflare Sandbox: Claude Code, OpenAI Agents SDK
- Shardflux: Claude Code, MCP
Trust
- License
- Cloudflare Sandbox: Not listed
- Shardflux: Not listed
- BYOC
- Cloudflare Sandbox: Not listed
- Shardflux: Not listed
Hourly cost
One sandbox running for one hour
Cloudflare Sandbox
Shardflux
- 1 vCPU · 2 GiB
- Cloudflare Sandbox: $0.090
- Shardflux: $0.070
- 2 vCPU · 4 GiB
- Cloudflare Sandbox: $0.180
- Shardflux: $0.140
- 4 vCPU · 8 GiB
- Cloudflare Sandbox: $0.360
- Shardflux: $0.280
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Cloudflare Sandbox fits when
- You use the OpenAI Agents SDK.
Shardflux fits when
- You need GPUs.
- You use MCP.
- You want the lower list price: $0.140 against $0.180 an hour for 2 vCPU and 4 GiB.
- You want to start without paying.
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