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| Metric | Wasmer | Firecracker | Candle |
|---|---|---|---|
| Score | A-83 | B70 | D48 |
| Type | WebAssembly | MicroVM | |
| Execution | hybrid | aot | jit |
| Interface | cli | api | sdk |
| Cold Start | 2ms | 125ms | 300ms |
| Memory | 8MB | 5MB | 200MB |
| Startup | 1ms | 100ms | 50ms |
| Isolation | process | microvm | process |
| Maturity | stable | production | stable |
| Languages | Rust, C, C++, Go, Python, Ruby, PHP | Any | Rust |
| License | MIT | Apache-2.0 | Apache-2.0 |
| Links |