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| Metric | Bun | V8 | Python (CPython) | Deno |
|---|---|---|---|---|
| Score | B+76 | B74 | B71 | C+64 |
| Type | Language | Language | Language | Language |
| Execution | jit | jit | interpreted | jit |
| Interface | cli | embedded | cli | cli |
| Cold Start | 3ms | 5ms | 50ms | 20ms |
| Memory | 25MB | 30MB | 15MB | 35MB |
| Startup | 1ms | 2ms | 10ms | 15ms |
| Isolation | process | process | process | process |
| Maturity | stable | production | production | stable |
| Languages | JavaScript, TypeScript, JSX, TSX | JavaScript, TypeScript, WebAssembly | Python | JavaScript, TypeScript, WebAssembly |
| License | MIT | BSD-3-Clause | Other | MIT |
| Links |