E2B vs Runloop
A side-by-side comparison of E2B and Runloop, two Infra tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | E2B | Runloop |
|---|---|---|
| Category | Infra | Infra |
| Pricing | FREEMIUM | FREEMIUM |
| License (differs) | Open core | Proprietary |
| Deployment (differs) | Hybrid | Cloud |
| Platforms (differs) | API, CLI | API, CLI, Web |
| Model support | Model-agnostic | Model-agnostic |
| Vendor (differs) | E2B | Runloop AI, Inc. |
| Capabilities (differs) |
|
|
The honest brief
E2B
Firecracker microVM isolation with stateful sessions — code interpreter pattern where vars persist across agent turns.
- Firecracker microVM hardware isolation
- Stateful sessions across agent turns
- Sub-second cold starts
- Large catalog of community templates
- Open-source SDK
- No native GPU sandboxes (vs Modal)
- Daytona quotes faster cold starts
- Per-second billing adds up at scale
- Narrower than full infra platforms
Runloop
Pairs on-demand coding-agent Devboxes with a public benchmarking suite, so you can both run agents and measure them on one platform.
- Isolated cloud sandboxes for agent code
- Scales to thousands of parallel Devboxes
- Full filesystem, build-tool, compiler access
- $50 in free starter credits
- Enterprise VPC + compliance options
- Usage-based pricing can be hard to forecast
- Aimed at developers, not end users
- Proprietary, no self-host option
When to pick which
Both cover Sandboxed code execution.
Pick E2B if you need Browser automation.
- Browser automation (secondary capability)
Pick Runloop if you need LLM evaluation.
- LLM evaluation (primary capability)
They also differ on:
- License
- Open core · Proprietary
- Deployment
- Hybrid · Cloud
- Platforms
- API, CLI · API, CLI, Web