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| Metric | Bun | Firecracker | ONNX Runtime |
|---|---|---|---|
| Score | B+76 | B70 | C-50 |
| Type | Language | MicroVM | |
| Execution | jit | aot | hybrid |
| Interface | cli | api | sdk |
| Cold Start | 3ms | 125ms | 500ms |
| Memory | 25MB | 5MB | 300MB |
| Startup | 1ms | 100ms | 100ms |
| Isolation | process | microvm | process |
| Maturity | stable | production | production |
| Languages | JavaScript, TypeScript, JSX, TSX | Any | Python, C++, C#, Java |
| License | MIT | Apache-2.0 | MIT |
| Links |