OpenAI Evals vs Pydantic Evals
| OpenAI Evals | Pydantic Evals | |
|---|---|---|
| Platforms | api, self-hosted, Web | Linux |
| Evaluation methods | basic exact/match evaluations, model-graded evaluations, custom evaluation logic, academic benchmarks, meta-evaluations | Deterministic checks; custom evaluators; LLM judges; G-Eval; performance checks; report evaluators; span-based evaluation; agentic trajectory evaluation |
| Model support | OpenAI API models and custom CompletionFunction implementations | OpenAI; Anthropic; Gemini; xAI; Bedrock; Cerebras; Cohere; Groq; Hugging Face; Mistral; OpenRouter; and other listed Pydantic AI providers |
| Safety evaluations | Yes | Yes |
| Deployment | hybrid | self-hosted |
| Prompt versioning | Yes | Yes |
| API access | Yes | Yes |
| Free plan | Yes |
Listed together in Best AI LLM Evaluation Tools