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| Metric | Cloudflare Workers | Metal | Candle |
|---|---|---|---|
| Score | B+75 | B74 | D48 |
| Type | Edge | ||
| Execution | jit | aot | jit |
| Interface | platform | sdk | sdk |
| Cold Start | <1ms | 50ms | 300ms |
| Memory | 128MB | 100MB | 200MB |
| Startup | <1ms | 20ms | 50ms |
| Isolation | process | hardware | process |
| Maturity | production | production | stable |
| Languages | JavaScript, TypeScript, Rust, C, C++ | Swift, Objective-C, C++ | Rust |
| License | Proprietary | Proprietary | Apache-2.0 |
| Links |