OpenCompass vs Vellum
| OpenCompass | Vellum | |
|---|---|---|
| Free plan | Yes | |
| Paid from | $30/mo | |
| Platforms | api, Linux, self-hosted, Windows | Android, extension, iOS, macOS, self-hosted, Web, Windows |
| Evaluation methods | objective; subjective; discriminative; generative; LLM-as-a-judge | |
| Model support | Hugging Face models; API-based models; custom models; OpenAI; Anthropic; Gemini; Qwen; GLM; DeepSeek | |
| Safety evaluations | Yes | |
| Deployment | self-hosted | |
| Free plan | Yes | |
| Paid from | 30 /mo | |
| API access | Yes | |
| AI decision-making | Yes | |
| Native integrations | 10 apps | |
| Human approvals | Yes | |
| Deployment options | both |
Listed together in Best AI LLM Evaluation Tools