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| Metric | safetensors | Python (CPython) | Firecracker | Node.js |
|---|---|---|---|---|
| Score | A-83 | B71 | B70 | B-65 |
| Type | Language | MicroVM | Language | |
| Execution | aot | interpreted | aot | jit |
| Interface | embedded | cli | api | cli |
| Cold Start | <1ms | 50ms | 125ms | 50ms |
| Memory | 0MB | 15MB | 5MB | 40MB |
| Startup | <1ms | 10ms | 100ms | 20ms |
| Isolation | process | process | microvm | process |
| Maturity | production | production | production | production |
| Languages | Any | Python | Any | JavaScript, TypeScript |
| License | Apache-2.0 | Other | Apache-2.0 | MIT |
| Links |