Mosaic Sandbox vs Vercel Sandbox
Mosaic Sandbox costs $0.025 per vCPU-hour and Vercel Sandbox costs $0.128 per vCPU-hour. Mosaic Sandbox runs Firecracker microVMs. Vercel Sandbox runs Firecracker microVMs and limits a session to 24 hours.
Updated
Mosaic Sandbox
- Isolation
- Firecracker microVM
- Free tier
- Not listed
- Max session
- Not listed
Vercel Sandbox
- Isolation
- Firecracker microVM
- Free tier
- 5 CPU-hours every month
- Max session
- 24 hours
What is different
9 fields differ. The rest are the same or not listed.
Mosaic Sandbox
Vercel Sandbox
- vCPU, per hour
- Mosaic Sandbox: $0.025
- Vercel Sandbox: $0.128
- RAM, per GiB-hour
- Mosaic Sandbox: Included
- Vercel Sandbox: $0.0212
- Storage
- Mosaic Sandbox: Free
- Vercel Sandbox: On Pro, snapshots $0.08 per GB-month and drives $0.05 per GB-month (beta).
- Paid plan from
- Mosaic Sandbox: Pay as you go
- Vercel Sandbox: $20 / month
- Billing
- Mosaic Sandbox: Bundled machine time
- Vercel Sandbox: Active CPU time only
- Largest sandbox
- Mosaic Sandbox: 16 vCPU · 32 GiB
- Vercel Sandbox: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Mosaic Sandbox: Up to 200
- Vercel Sandbox: Up to 10,000
- SDKs
- Mosaic Sandbox: Python, TypeScript, Go
- Vercel Sandbox: Python, JavaScript / TypeScript
- Integrations
- Mosaic Sandbox: LangChain, MCP
- Vercel Sandbox: Claude Agent SDK, LangChain, OpenAI Agents SDK, Vercel AI SDK
Full comparison
18 fields, at each provider's list price
Mosaic Sandboxsandbox
Vercel Sandboxvercel
Pricing
- vCPU, per hour
- Mosaic Sandbox: $0.025
- Vercel Sandbox: $0.128
- RAM, per GiB-hour
- Mosaic Sandbox: Included
- Vercel Sandbox: $0.0212
- Storage
- Mosaic Sandbox: Free
- Vercel Sandbox: On Pro, snapshots $0.08 per GB-month and drives $0.05 per GB-month (beta).
- Free tier
- Mosaic Sandbox: Not listed
- Vercel Sandbox: 5 CPU-hours every month
- Paid plan from
- Mosaic Sandbox: Pay as you go
- Vercel Sandbox: $20 / month
- Billing
- Mosaic Sandbox: Bundled machine time
- Vercel Sandbox: Active CPU time only
Limits
- Max session
- Mosaic Sandbox: Not listed
- Vercel Sandbox: 24 hours
- Idle stop
- Mosaic Sandbox: Not listed
- Vercel Sandbox: Not listed
- Largest sandbox
- Mosaic Sandbox: 16 vCPU · 32 GiB
- Vercel Sandbox: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Mosaic Sandbox: Up to 200
- Vercel Sandbox: Up to 10,000
Platform
- Isolation
- Mosaic Sandbox: Firecracker microVM
- Vercel Sandbox: Firecracker microVM
- GPU
- Mosaic Sandbox: Not listed
- Vercel Sandbox: Not listed
- Snapshots
- Mosaic Sandbox:
- Vercel Sandbox:
- Pause and resume
- Mosaic Sandbox:
- Vercel Sandbox:
Developer
- SDKs
- Mosaic Sandbox: Python, TypeScript, Go
- Vercel Sandbox: Python, JavaScript / TypeScript
- Integrations
- Mosaic Sandbox: LangChain, MCP
- Vercel Sandbox: Claude Agent SDK, LangChain, OpenAI Agents SDK, Vercel AI SDK
Trust
- License
- Mosaic Sandbox: Not listed
- Vercel Sandbox: Not listed
- BYOC
- Mosaic Sandbox: Not listed
- Vercel Sandbox: Not listed
Hourly cost
One sandbox running for one hour
Mosaic Sandbox
Vercel Sandbox
- 1 vCPU · 2 GiB
- Mosaic Sandbox: $0.025
- Vercel Sandbox: $0.170
- 2 vCPU · 4 GiB
- Mosaic Sandbox: $0.050
- Vercel Sandbox: $0.341
- 4 vCPU · 8 GiB
- Mosaic Sandbox: $0.100
- Vercel Sandbox: $0.682
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Mosaic Sandbox fits when
- You want to pay only for usage, with no plan fee.
- You use MCP.
- You want the lower list price: $0.050 against $0.341 an hour for 2 vCPU and 4 GiB.
- You need a sandbox larger than 8 vCPU · 16 GiB.
Vercel Sandbox fits when
- You use the Claude Agent SDK, the OpenAI Agents SDK or the Vercel AI SDK.
- Your code waits a lot: CPU is billed only while it is in use.
- You need SOC 2 Type II.
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