Mosaic Sandbox vs Phonebox
Mosaic Sandbox costs $0.025 per vCPU-hour. Mosaic Sandbox runs Firecracker microVMs. Phonebox limits a session to 3 hours.
Updated
Mosaic Sandbox
- Isolation
- Firecracker microVM
- Free tier
- Not listed
- Max session
- Not listed
Phonebox
- Isolation
- Not listed
- Free tier
- $2 starter credit, one time, no card
- Max session
- 3 hours
What is different
3 fields differ. The rest are the same or not listed.
Mosaic Sandbox
Phonebox
- Concurrent sandboxes
- Mosaic Sandbox: Up to 200
- Phonebox: Up to 5
- SDKs
- Mosaic Sandbox: Python, TypeScript, Go
- Phonebox: TypeScript
- Integrations
- Mosaic Sandbox: LangChain, MCP, Claude Code, Vercel AI SDK
- Phonebox: MCP
Full comparison
18 fields, at each provider's list price
Mosaic Sandboxsandbox
Phoneboxphonebox
Pricing
- vCPU, per hour
- Mosaic Sandbox: $0.025
- Phonebox: Not listed
- RAM, per GiB-hour
- Mosaic Sandbox: Included
- Phonebox: Not listed
- Storage
- Mosaic Sandbox: Free
- Phonebox: Not listed
- Free tier
- Mosaic Sandbox: Not listed
- Phonebox: $2 starter credit, one time, no card
- Paid plan from
- Mosaic Sandbox: Pay as you go
- Phonebox: Pay as you go
- Billing
- Mosaic Sandbox: Bundled machine time
- Phonebox: Bundled machine time
Limits
- Max session
- Mosaic Sandbox: Not listed
- Phonebox: 3 hours
- Idle stop
- Mosaic Sandbox: Not listed
- Phonebox: After 5 minutes
- Largest sandbox
- Mosaic Sandbox: 16 vCPU · 32 GiB
- Phonebox: Not listed
- Concurrent sandboxes
- Mosaic Sandbox: Up to 200
- Phonebox: Up to 5
Platform
- Isolation
- Mosaic Sandbox: Firecracker microVM
- Phonebox: Not listed
- GPU
- Mosaic Sandbox: No
- Phonebox: Not listed
- Snapshots
- Mosaic Sandbox:
- Phonebox: Not listed
- Pause and resume
- Mosaic Sandbox:
- Phonebox:
Developer
- SDKs
- Mosaic Sandbox: Python, TypeScript, Go
- Phonebox: TypeScript
- Integrations
- Mosaic Sandbox: LangChain, MCP, Claude Code, Vercel AI SDK
- Phonebox: MCP
Trust
- License
- Mosaic Sandbox: Not listed
- Phonebox: Not listed
- BYOC
- Mosaic Sandbox: Not listed
- Phonebox: Not listed
Hourly cost
One sandbox running for one hour
Mosaic Sandbox
Phonebox
- 1 vCPU · 2 GiB
- Mosaic Sandbox: $0.025
- Phonebox: Not listed
- 2 vCPU · 4 GiB
- Mosaic Sandbox: $0.050
- Phonebox: Not listed
- 4 vCPU · 8 GiB
- Mosaic Sandbox: $0.100
- Phonebox: Not listed
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Mosaic Sandbox fits when
- You use LangChain, Claude Code or the Vercel AI SDK.
- You need snapshots.
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