Select runtimes to compare side by side. Click chips below to toggle selection.
| Metric | Cloudflare Workers | Python (CPython) | Firecracker | containerd | AWS Lambda |
|---|---|---|---|---|---|
| Score | B+75 | B71 | B70 | B-66 | B-65 |
| Type | Edge | Language | MicroVM | Container | Serverless |
| Execution | jit | interpreted | aot | hybrid | hybrid |
| Interface | platform | cli | api | platform | platform |
| Cold Start | <1ms | 50ms | 125ms | 100ms | 200ms |
| Memory | 128MB | 15MB | 5MB | 20MB | 128MB |
| Startup | <1ms | 10ms | 100ms | 20ms | 100ms |
| Isolation | process | process | microvm | container | microvm |
| Maturity | production | production | production | production | production |
| Languages | JavaScript, TypeScript, Rust, C, C++ | Python | Any | Any | JavaScript, TypeScript, Python, Java, Go, Ruby, .NET, Rust |
| License | Proprietary | Other | Apache-2.0 | Apache-2.0 | Proprietary |
| Links |