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| Metric | Bun | Python (CPython) | Deno | Jan |
|---|---|---|---|---|
| Score | B+76 | B71 | C+64 | F34 |
| Type | Language | Language | Language | |
| Execution | jit | interpreted | jit | hybrid |
| Interface | cli | cli | cli | gui |
| Cold Start | 3ms | 50ms | 20ms | 2000ms |
| Memory | 25MB | 15MB | 35MB | 600MB |
| Startup | 1ms | 10ms | 15ms | 400ms |
| Isolation | process | process | process | process |
| Maturity | stable | production | stable | stable |
| Languages | JavaScript, TypeScript, JSX, TSX | Python | JavaScript, TypeScript, WebAssembly | TypeScript, Python |
| License | MIT | Other | MIT | AGPL-3.0 |
| Links |