Polyrouter vs vLLM Semantic Router
| Polyrouter | vLLM Semantic Router | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | api, self-hosted, Web | Linux, macOS |
| Free plan | Yes | Yes |
| Fallback routing | Yes | No |
| Usage analytics | Yes | Yes |
| Self-hosted deployment | Yes | Yes |
| Budget controls | Yes | — |
| Virtual API keys | Yes | — |
Both are listed in Best LLM Gateway Software. On Specifiction, Polyrouter scores higher on our published basis.