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| Metric | Bun | Python (CPython) | Deno | Google Cloud Functions |
|---|---|---|---|---|
| Score | B+76 | B71 | C+64 | C59 |
| Type | Language | Language | Language | Serverless |
| Execution | jit | interpreted | jit | hybrid |
| Interface | cli | cli | cli | platform |
| Cold Start | 3ms | 50ms | 20ms | 300ms |
| Memory | 25MB | 15MB | 35MB | 128MB |
| Startup | 1ms | 10ms | 15ms | 50ms |
| Isolation | process | process | process | container |
| Maturity | stable | production | stable | production |
| Languages | JavaScript, TypeScript, JSX, TSX | Python | JavaScript, TypeScript, WebAssembly | Python, JavaScript, TypeScript, Go, Java, Ruby, PHP |
| License | MIT | Other | MIT | Proprietary |
| Links |