E2B vs Solari
E2B costs $0.0504 per vCPU-hour and Solari costs $0.0525 per vCPU-hour. E2B runs Firecracker microVMs and limits a session to 24 hours. Solari runs Cloud Hypervisor microVMs and limits a session to 24 hours.
Updated
E2B
- Isolation
- Firecracker microVM
- Free tier
- $100 credit, one time
- Max session
- 24 hours
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.
E2B
Solari
- vCPU, per hour
- E2B: $0.0504
- Solari: $0.0525
- RAM, per GiB-hour
- E2B: $0.0162
- Solari: $0.0165
- Storage
- E2B: Free
- Solari: Snapshots $0.05 per GB-month, the first 10 GB per organization free, from October 1, 2026.
- Free tier
- E2B: $100 credit, one time
- Solari: $3 credit every month
- Paid plan from
- E2B: $150 / month
- Solari: $20 / month
- Largest sandbox
- E2B: 8 vCPU · 8 GiB
- Solari: 8 vCPU · 16 GiB
- Concurrent sandboxes
- E2B: Up to 100
- Solari: Up to 10
- Isolation
- E2B: Firecracker microVM
- Solari: Cloud Hypervisor microVM
- SDKs
- E2B: Python, JavaScript / TypeScript
- Solari: TypeScript, Python, Go, Rust
- Integrations
- E2B: LangChain, OpenAI Agents SDK, Vercel AI SDK, MCP, Claude Code
- Solari: MCP, Claude Code
Full comparison
18 fields, at each provider's list price
Solaridocs
Pricing
- vCPU, per hour
- E2B: $0.0504
- Solari: $0.0525
- RAM, per GiB-hour
- E2B: $0.0162
- Solari: $0.0165
- Storage
- E2B: Free
- Solari: Snapshots $0.05 per GB-month, the first 10 GB per organization free, from October 1, 2026.
- Free tier
- E2B: $100 credit, one time
- Solari: $3 credit every month
- Paid plan from
- E2B: $150 / month
- Solari: $20 / month
- Billing
- E2B: Per second
- Solari: Per second
Limits
- Max session
- E2B: 24 hours
- Solari: 24 hours
- Idle stop
- E2B: Not listed
- Solari: Not listed
- Largest sandbox
- E2B: 8 vCPU · 8 GiB
- Solari: 8 vCPU · 16 GiB
- Concurrent sandboxes
- E2B: Up to 100
- Solari: Up to 10
Platform
- Isolation
- E2B: Firecracker microVM
- Solari: Cloud Hypervisor microVM
- GPU
- E2B: No
- Solari: Not listed
- Snapshots
- E2B:
- Solari:
- Pause and resume
- E2B:
- Solari:
Developer
- SDKs
- E2B: Python, JavaScript / TypeScript
- Solari: TypeScript, Python, Go, Rust
- Integrations
- E2B: LangChain, OpenAI Agents SDK, Vercel AI SDK, MCP, Claude Code
- Solari: MCP, Claude Code
Trust
- License
- E2B: Apache-2.0
- Solari: Not listed
- BYOC
- E2B: Enterprise plan
- Solari: Enterprise plan, in your own VPC
Hourly cost
One sandbox running for one hour
E2B
Solari
- 1 vCPU · 2 GiB
- E2B: $0.083
- Solari: $0.086
- 2 vCPU · 4 GiB
- E2B: $0.166
- Solari: $0.171
- 4 vCPU · 8 GiB
- E2B: $0.331
- Solari: $0.342
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 LangChain, the OpenAI Agents SDK or the Vercel AI SDK.
- You want the lower list price: $0.166 against $0.171 an hour for 2 vCPU and 4 GiB.
- You want the larger free credit: $100 against $3.
Solari fits when
- You need a sandbox larger than 8 vCPU · 8 GiB.
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