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| Metric | Bun | AWS Lambda | Node.js | Azure Functions |
|---|---|---|---|---|
| Score | B+76 | B-65 | B-65 | C56 |
| Type | Language | Serverless | Language | Serverless |
| Execution | jit | hybrid | jit | hybrid |
| Interface | cli | platform | cli | platform |
| Cold Start | 3ms | 200ms | 50ms | 800ms |
| Memory | 25MB | 128MB | 40MB | 128MB |
| Startup | 1ms | 100ms | 20ms | 100ms |
| Isolation | process | microvm | process | container |
| Maturity | stable | production | production | production |
| Languages | JavaScript, TypeScript, JSX, TSX | JavaScript, TypeScript, Python, Java, Go, Ruby, .NET, Rust | JavaScript, TypeScript | JavaScript, TypeScript, Python, Java, C#, PowerShell, Go |
| License | MIT | Proprietary | MIT | MIT |
| Links |