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| Metric | Bun | Python (CPython) | Firecracker | Candle |
|---|---|---|---|---|
| Score | B+76 | B71 | B70 | D48 |
| Type | Language | Language | MicroVM | |
| Execution | jit | interpreted | aot | jit |
| Interface | cli | cli | api | sdk |
| Cold Start | 3ms | 50ms | 125ms | 300ms |
| Memory | 25MB | 15MB | 5MB | 200MB |
| Startup | 1ms | 10ms | 100ms | 50ms |
| Isolation | process | process | microvm | process |
| Maturity | stable | production | production | stable |
| Languages | JavaScript, TypeScript, JSX, TSX | Python | Any | Rust |
| License | MIT | Other | Apache-2.0 | Apache-2.0 |
| Links |