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| Metric | Cloudflare Workers | Python (CPython) | Firecracker | Fastly Compute |
|---|---|---|---|---|
| Score | B+75 | B71 | B70 | B-69 |
| Type | Edge | Language | MicroVM | Edge |
| Execution | jit | interpreted | aot | aot |
| Interface | platform | cli | api | cli |
| Cold Start | <1ms | 50ms | 125ms | 50ms |
| Memory | 128MB | 15MB | 5MB | 128MB |
| Startup | <1ms | 10ms | 100ms | 10ms |
| Isolation | process | process | microvm | container |
| Maturity | production | production | production | production |
| Languages | JavaScript, TypeScript, Rust, C, C++ | Python | Any | Rust, JavaScript, AssemblyScript, Go |
| License | Proprietary | Other | Apache-2.0 | Apache-2.0 |
| Links |