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| Metric | Bun | Cloudflare Workers | Metal |
|---|---|---|---|
| Score | B+76 | B+75 | B74 |
| Type | Language | Edge | |
| Execution | jit | jit | aot |
| Interface | cli | platform | sdk |
| Cold Start | 3ms | <1ms | 50ms |
| Memory | 25MB | 128MB | 100MB |
| Startup | 1ms | <1ms | 20ms |
| Isolation | process | process | hardware |
| Maturity | stable | production | production |
| Languages | JavaScript, TypeScript, JSX, TSX | JavaScript, TypeScript, Rust, C, C++ | Swift, Objective-C, C++ |
| License | MIT | Proprietary | Proprietary |
| Links |