| Tool | License | Stars | Description |
|---|---|---|---|
| OpenRouter | Proprietary | - | Unified API for 100+ LLMs |
| Portkey | Proprietary | - | AI gateway with observability |
| Helicone | MIT | 5k+ | Open-source LLM observability |
| LLM Harbor | Apache-2.0 | 2.5k | LLM proxy and management |
| Feature | LiteLLM | OpenRouter | Portkey |
|---|---|---|---|
| Self-hosted | ✅ | ❌ | ❌ |
| Open Source | ✅ | ❌ | ❌ |
| 100+ Providers | ✅ | ✅ | ✅ |
| Cost Tracking | ✅ | ✅ | ✅ |
| Caching | ✅ | ✅ | ✅ |
| Enterprise Support | ✅ | ✅ | ✅ |