E2B vs Freestyle VMs

E2B costs $0.0504 per vCPU-hour and Freestyle VMs costs $0.04032 per vCPU-hour. E2B runs Firecracker microVMs and limits a session to 24 hours. Freestyle VMs runs full VMs.

Updated Oct 14, 2026

E2B

Open-source sandboxes for AI-generated code.

Isolation: Firecracker microVM
Free tier: $100 credit, one time
Max session: 24 hours

Visit site E2B profile

Freestyle VMs

Full Linux virtual machines for AI agents.

Isolation: Full VM
Free tier: Free plan, $0 forever
Max session: Not listed

Visit site Freestyle VMs profile

What is different

10 fields differ. The rest are the same or not listed.

Field

E2B

Freestyle VMs

vCPU, per hour: E2B: $0.0504; Freestyle VMs: $0.04032
RAM, per GiB-hour: E2B: $0.0162; Freestyle VMs: $0.0129
Storage: E2B: Free; Freestyle VMs: $0.000086 per GiB-hour
Free tier: E2B: $100 credit, one time; Freestyle VMs: Free plan, $0 forever
Paid plan from: E2B: $150 / month; Freestyle VMs: $50 / month
Largest sandbox: E2B: 8 vCPU · 8 GiB; Freestyle VMs: 32 vCPU · 64 GiB
Concurrent sandboxes: E2B: Up to 1,100; Freestyle VMs: Up to 400
Isolation: E2B: Firecracker microVM; Freestyle VMs: Full VM
SDKs: E2B: Python, JavaScript / TypeScript; Freestyle VMs: JavaScript
Integrations: E2B: LangChain, OpenAI Agents SDK, Vercel AI SDK, MCP; Freestyle VMs: OpenAI Agents SDK, Claude Agent SDK

Full comparison

18 fields, at each provider's list price

E2Be2b.dev/pricing

Freestyle VMsfreestyle.sh/pricingfreestyle.sh

Pricing

vCPU, per hour: E2B: $0.0504; Freestyle VMs: $0.04032
RAM, per GiB-hour: E2B: $0.0162; Freestyle VMs: $0.0129
Storage: E2B: Free; Freestyle VMs: $0.000086 per GiB-hour
Free tier: E2B: $100 credit, one time; Freestyle VMs: Free plan, $0 forever
Paid plan from: E2B: $150 / month; Freestyle VMs: $50 / month
Billing: E2B: Per second; Freestyle VMs: Per second

Limits

Max session: E2B: 24 hours; Freestyle VMs: Not listed
Idle stop: E2B: Not listed; Freestyle VMs: Not listed
Largest sandbox: E2B: 8 vCPU · 8 GiB; Freestyle VMs: 32 vCPU · 64 GiB
Concurrent sandboxes: E2B: Up to 1,100; Freestyle VMs: Up to 400

Platform

Isolation: E2B: Firecracker microVM; Freestyle VMs: Full VM
GPU: E2B: No; Freestyle VMs: Not listed
Snapshots: E2B:; Freestyle VMs:
Pause and resume: E2B:; Freestyle VMs:

Developer

SDKs: E2B: Python, JavaScript / TypeScript; Freestyle VMs: JavaScript
Integrations: E2B: LangChain, OpenAI Agents SDK, Vercel AI SDK, MCP; Freestyle VMs: OpenAI Agents SDK, Claude Agent SDK

Trust

License: E2B: Apache-2.0; Freestyle VMs: Not listed
BYOC: E2B: Enterprise plan; Freestyle VMs: Not listed

Hourly cost

One sandbox running for one hour

Size

E2B

Freestyle VMs

1 vCPU · 2 GiB: E2B: $0.083; Freestyle VMs: $0.066
2 vCPU · 4 GiB: E2B: $0.166; Freestyle VMs: $0.132
4 vCPU · 8 GiB: E2B: $0.331; Freestyle VMs: $0.264

Compute only, at list rates.

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Which one fits

Based on the fields above

E2B fits when

You want each sandbox in its own microVM.
You want an open-source platform (Apache-2.0) that you can self-host.
You use LangChain, the Vercel AI SDK or MCP.
You need the sandboxes in your own cloud account.

Freestyle VMs fits when

You want each sandbox to be a full VM.
You use the Claude Agent SDK.
You want the lower list price: $0.132 against $0.166 an hour for 2 vCPU and 4 GiB.
You need a sandbox larger than 8 vCPU · 8 GiB.

More comparisons

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E2B

Freestyle VMs

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

E2B fits when

Freestyle VMs fits when

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