E2B vs Mosaic Sandbox
E2B costs $0.0504 per vCPU-hour and Mosaic Sandbox costs $0.025 per vCPU-hour. E2B runs Firecracker microVMs and limits a session to 24 hours. Mosaic Sandbox runs Firecracker microVMs.
Updated
E2B
- Isolation
- Firecracker microVM
- Free tier
- $100 credit, one time
- Max session
- 24 hours
Mosaic Sandbox
- Isolation
- Firecracker microVM
- Free tier
- Not listed
- Max session
- Not listed
What is different
8 fields differ. The rest are the same or not listed.
E2B
Mosaic Sandbox
- vCPU, per hour
- E2B: $0.0504
- Mosaic Sandbox: $0.025
- RAM, per GiB-hour
- E2B: $0.0162
- Mosaic Sandbox: Included
- Paid plan from
- E2B: $150 / month
- Mosaic Sandbox: Pay as you go
- Billing
- E2B: Per second
- Mosaic Sandbox: Bundled machine time
- Largest sandbox
- E2B: 8 vCPU · 8 GiB
- Mosaic Sandbox: 16 vCPU · 32 GiB
- Concurrent sandboxes
- E2B: Up to 1,100
- Mosaic Sandbox: Up to 200
- SDKs
- E2B: Python, JavaScript / TypeScript
- Mosaic Sandbox: Python, TypeScript, Go
- Integrations
- E2B: LangChain, OpenAI Agents SDK, Vercel AI SDK, MCP
- Mosaic Sandbox: LangChain, MCP
Full comparison
18 fields, at each provider's list price
Mosaic Sandboxsandbox
Pricing
- vCPU, per hour
- E2B: $0.0504
- Mosaic Sandbox: $0.025
- RAM, per GiB-hour
- E2B: $0.0162
- Mosaic Sandbox: Included
- Storage
- E2B: Free
- Mosaic Sandbox: Free
- Free tier
- E2B: $100 credit, one time
- Mosaic Sandbox: Not listed
- Paid plan from
- E2B: $150 / month
- Mosaic Sandbox: Pay as you go
- Billing
- E2B: Per second
- Mosaic Sandbox: Bundled machine time
Limits
- Max session
- E2B: 24 hours
- Mosaic Sandbox: Not listed
- Idle stop
- E2B: Not listed
- Mosaic Sandbox: Not listed
- Largest sandbox
- E2B: 8 vCPU · 8 GiB
- Mosaic Sandbox: 16 vCPU · 32 GiB
- Concurrent sandboxes
- E2B: Up to 1,100
- Mosaic Sandbox: Up to 200
Platform
- Isolation
- E2B: Firecracker microVM
- Mosaic Sandbox: Firecracker microVM
- GPU
- E2B: No
- Mosaic Sandbox: Not listed
- Snapshots
- E2B:
- Mosaic Sandbox:
- Pause and resume
- E2B:
- Mosaic Sandbox:
Developer
- SDKs
- E2B: Python, JavaScript / TypeScript
- Mosaic Sandbox: Python, TypeScript, Go
- Integrations
- E2B: LangChain, OpenAI Agents SDK, Vercel AI SDK, MCP
- Mosaic Sandbox: LangChain, MCP
Trust
- License
- E2B: Apache-2.0
- Mosaic Sandbox: Not listed
- BYOC
- E2B: Enterprise plan
- Mosaic Sandbox: Not listed
Hourly cost
One sandbox running for one hour
E2B
Mosaic Sandbox
- 1 vCPU · 2 GiB
- E2B: $0.083
- Mosaic Sandbox: $0.025
- 2 vCPU · 4 GiB
- E2B: $0.166
- Mosaic Sandbox: $0.050
- 4 vCPU · 8 GiB
- E2B: $0.331
- Mosaic Sandbox: $0.100
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
E2B fits when
- You want an open-source platform (Apache-2.0) that you can self-host.
- You use the OpenAI Agents SDK or the Vercel AI SDK.
- You need a desktop in the sandbox.
- You need the sandboxes in your own cloud account.
Mosaic Sandbox fits when
- You want to pay only for usage, with no plan fee.
- You want the lower list price: $0.050 against $0.166 an hour for 2 vCPU and 4 GiB.
- You need a sandbox larger than 8 vCPU · 8 GiB.
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