Cloudflare Sandbox vs Solari
Cloudflare Sandbox costs $0.072 per vCPU-hour and Solari costs $0.0525 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Solari runs Cloud Hypervisor microVMs and limits a session to 24 hours.
Updated
Cloudflare Sandbox
- Isolation
- Firecracker microVM
- Free tier
- None
- Max session
- Not listed
Solari
- Isolation
- Cloud Hypervisor microVM
- Free tier
- $3 credit every month
- Max session
- 24 hours
What is different
10 fields differ. The rest are the same or not listed.
Cloudflare Sandbox
Solari
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Solari: $0.0525
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Solari: $0.0165
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Solari: Snapshots $0.05 per GB-month, the first 10 GB per organization free, from October 1, 2026.
- Free tier
- Cloudflare Sandbox: None
- Solari: $3 credit every month
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Solari: $20 / month
- Billing
- Cloudflare Sandbox: Active CPU time only
- Solari: Per second
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Solari: 8 vCPU · 16 GiB
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Solari: Cloud Hypervisor microVM
- SDKs
- Cloudflare Sandbox: TypeScript
- Solari: TypeScript, Python, Go, Rust
- Integrations
- Cloudflare Sandbox: Claude Code, OpenAI Agents SDK
- Solari: MCP, Claude Code
Full comparison
18 fields, at each provider's list price
Cloudflare Sandboxdevelopers
Solaridocs
Pricing
- vCPU, per hour
- Cloudflare Sandbox: $0.072
- Solari: $0.0525
- RAM, per GiB-hour
- Cloudflare Sandbox: $0.009
- Solari: $0.0165
- Storage
- Cloudflare Sandbox: $0.000252 per GiB-hour
- Solari: Snapshots $0.05 per GB-month, the first 10 GB per organization free, from October 1, 2026.
- Free tier
- Cloudflare Sandbox: None
- Solari: $3 credit every month
- Paid plan from
- Cloudflare Sandbox: $5 / month
- Solari: $20 / month
- Billing
- Cloudflare Sandbox: Active CPU time only
- Solari: Per second
Limits
- Max session
- Cloudflare Sandbox: Not listed
- Solari: 24 hours
- Idle stop
- Cloudflare Sandbox: Not listed
- Solari: Not listed
- Largest sandbox
- Cloudflare Sandbox: 4 vCPU · 12 GiB
- Solari: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Cloudflare Sandbox: Not listed
- Solari: Up to 10
Platform
- Isolation
- Cloudflare Sandbox: Firecracker microVM
- Solari: Cloud Hypervisor microVM
- GPU
- Cloudflare Sandbox: Not listed
- Solari: Not listed
- Snapshots
- Cloudflare Sandbox:
- Solari:
- Pause and resume
- Cloudflare Sandbox: Not listed
- Solari:
Developer
- SDKs
- Cloudflare Sandbox: TypeScript
- Solari: TypeScript, Python, Go, Rust
- Integrations
- Cloudflare Sandbox: Claude Code, OpenAI Agents SDK
- Solari: MCP, Claude Code
Trust
- License
- Cloudflare Sandbox: Not listed
- Solari: Not listed
- BYOC
- Cloudflare Sandbox: Not listed
- Solari: Enterprise plan, in your own VPC
Hourly cost
One sandbox running for one hour
Cloudflare Sandbox
Solari
- 1 vCPU · 2 GiB
- Cloudflare Sandbox: $0.090
- Solari: $0.086
- 2 vCPU · 4 GiB
- Cloudflare Sandbox: $0.180
- Solari: $0.171
- 4 vCPU · 8 GiB
- Cloudflare Sandbox: $0.360
- Solari: $0.342
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.
- Your code waits a lot: CPU is billed only while it is in use.
Solari fits when
- You use MCP.
- You want the lower list price: $0.171 against $0.180 an hour for 2 vCPU and 4 GiB.
- You want to start without paying.
- You need pause and resume.
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