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| Metric | Bun | Cloudflare Workers | gVisor | Python (CPython) |
|---|---|---|---|---|
| Score | B+76 | B+75 | B72 | B71 |
| Type | Language | Edge | MicroVM | Language |
| Execution | jit | jit | hybrid | interpreted |
| Interface | cli | platform | cli | cli |
| Cold Start | 3ms | <1ms | 50ms | 50ms |
| Memory | 25MB | 128MB | 20MB | 15MB |
| Startup | 1ms | <1ms | 30ms | 10ms |
| Isolation | process | process | microvm | process |
| Maturity | stable | production | stable | production |
| Languages | JavaScript, TypeScript, JSX, TSX | JavaScript, TypeScript, Rust, C, C++ | Any | Python |
| License | MIT | Proprietary | Apache-2.0 | Other |
| Links |