Modal vs Mosaic Sandbox
Modal costs $0.070956 per vCPU-hour and Mosaic Sandbox costs $0.025 per vCPU-hour. Modal runs gVisor, offers GPUs and limits a session to 24 hours. Mosaic Sandbox runs Firecracker microVMs.
Updated
Mosaic Sandbox
- Isolation
- Firecracker microVM
- Free tier
- Not listed
- Max session
- Not listed
What is different
6 fields differ. The rest are the same or not listed.
Modal
Mosaic Sandbox
- vCPU, per hour
- Modal: $0.070956
- Mosaic Sandbox: $0.025
- RAM, per GiB-hour
- Modal: $0.024012
- Mosaic Sandbox: Included
- Billing
- Modal: Per second
- Mosaic Sandbox: Bundled machine time
- Isolation
- Modal: gVisor
- Mosaic Sandbox: Firecracker microVM
- SDKs
- Modal: Python, JavaScript / TypeScript, Go
- Mosaic Sandbox: Python, TypeScript, Go
- Integrations
- Modal: Claude Agent SDK
- Mosaic Sandbox: LangChain, MCP
Full comparison
18 fields, at each provider's list price
Modalmodal
Mosaic Sandboxsandbox
Pricing
- vCPU, per hour
- Modal: $0.070956
- Mosaic Sandbox: $0.025
- RAM, per GiB-hour
- Modal: $0.024012
- Mosaic Sandbox: Included
- Storage
- Modal: Not listed
- Mosaic Sandbox: Free
- Free tier
- Modal: $30 credit every month
- Mosaic Sandbox: Not listed
- Paid plan from
- Modal: Pay as you go
- Mosaic Sandbox: Pay as you go
- Billing
- Modal: Per second
- Mosaic Sandbox: Bundled machine time
Limits
- Max session
- Modal: 24 hours
- Mosaic Sandbox: Not listed
- Idle stop
- Modal: Not listed
- Mosaic Sandbox: Not listed
- Largest sandbox
- Modal: Not listed
- Mosaic Sandbox: 16 vCPU · 32 GiB
- Concurrent sandboxes
- Modal: Not listed
- Mosaic Sandbox: Up to 200
Platform
- Isolation
- Modal: gVisor
- Mosaic Sandbox: Firecracker microVM
- GPU
- Modal:
- Mosaic Sandbox: Not listed
- Snapshots
- Modal:
- Mosaic Sandbox:
- Pause and resume
- Modal: Not listed
- Mosaic Sandbox:
Developer
- SDKs
- Modal: Python, JavaScript / TypeScript, Go
- Mosaic Sandbox: Python, TypeScript, Go
- Integrations
- Modal: Claude Agent SDK
- Mosaic Sandbox: LangChain, MCP
Trust
- License
- Modal: Not listed
- Mosaic Sandbox: Not listed
- BYOC
- Modal: Not listed
- Mosaic Sandbox: Not listed
Hourly cost
One sandbox running for one hour
Modal
Mosaic Sandbox
- 1 vCPU · 2 GiB
- Modal: $0.119
- Mosaic Sandbox: $0.025
- 2 vCPU · 4 GiB
- Modal: $0.238
- Mosaic Sandbox: $0.050
- 4 vCPU · 8 GiB
- Modal: $0.476
- Mosaic Sandbox: $0.100
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Modal fits when
- You need GPUs.
- You use the Claude Agent SDK.
- You need a desktop in the sandbox.
- You need SOC 2 Type II, HIPAA and GDPR.
Mosaic Sandbox fits when
- You want each sandbox in its own microVM.
- You use LangChain or MCP.
- You want the lower list price: $0.050 against $0.238 an hour for 2 vCPU and 4 GiB.
- You need pause and resume.
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