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| Metric | Wasmtime | Python (CPython) | Firecracker | AWS Lambda | Node.js | Deno |
|---|---|---|---|---|---|---|
| Score | A88 | B71 | B70 | B-65 | B-65 | C+64 |
| Type | WebAssembly | Language | MicroVM | Serverless | Language | Language |
| Execution | aot | interpreted | aot | hybrid | jit | jit |
| Interface | cli | cli | api | platform | cli | cli |
| Cold Start | 1ms | 50ms | 125ms | 200ms | 50ms | 20ms |
| Memory | 5MB | 15MB | 5MB | 128MB | 40MB | 35MB |
| Startup | <1ms | 10ms | 100ms | 100ms | 20ms | 15ms |
| Isolation | process | process | microvm | microvm | process | process |
| Maturity | production | production | production | production | production | stable |
| Languages | Rust, C, C++, Go, Python, AssemblyScript | Python | Any | JavaScript, TypeScript, Python, Java, Go, Ruby, .NET, Rust | JavaScript, TypeScript | JavaScript, TypeScript, WebAssembly |
| License | Apache-2.0 | Other | Apache-2.0 | Proprietary | MIT | MIT |
| Links |