Pydantic Evals vs Vellum
| Pydantic Evals | Vellum | |
|---|---|---|
| Free plan | Yes | |
| Paid from | $30/mo | |
| Platforms | Linux | Android, extension, iOS, macOS, self-hosted, Web, Windows |
| Free plan | Yes | Yes |
| Evaluation methods | Deterministic checks; custom evaluators; LLM judges; G-Eval; performance checks; report evaluators; span-based evaluation; agentic trajectory evaluation | |
| Model support | OpenAI; Anthropic; Gemini; xAI; Bedrock; Cerebras; Cohere; Groq; Hugging Face; Mistral; OpenRouter; and other listed Pydantic AI providers | |
| Safety evaluations | Yes | |
| Deployment | self-hosted | |
| Prompt versioning | Yes | |
| API access | Yes | Yes |
| Paid from | 30 /mo | |
| AI decision-making | Yes | |
| Native integrations | 10 apps | |
| Human approvals | Yes | |
| Deployment options | both |
Listed together in Best AI LLM Evaluation Tools