These tools integrates with
DeepEvalvsOpenAI API
LLM evaluation framework — 14+ metrics versus GPT-4o, o1, and embeddings from OpenAI
Compare interactively in Explore →Choose DeepEval when…
- •You want a pytest-style framework for LLM testing
- •Unit-test-like evals for LLM outputs fit your workflow
- •You need RAG-specific metrics like faithfulness and relevancy
Choose OpenAI API when…
- •You need the broadest ecosystem and most integrations
- •GPT-4 or o-series reasoning models are required
- •Assistants API, fine-tuning, or batch API are needed
Side-by-side comparison
Field
DeepEval
OpenAI API
Category
Prompt & Eval
LLM Infrastructure
Type
Open Source
Commercial
Free Tier
✓ Yes
✗ No
Pricing Plans
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API: Per token
GitHub Stars
⭐ 5,500
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Health
●80 — Active
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DeepEval
Open-source evaluation framework with 14+ metrics including faithfulness, relevancy, and hallucination detection. Integrates with CI/CD.
OpenAI API
API access to GPT-4o, o1, and other OpenAI models including embeddings and image generation. The most widely used LLM API in production.
Shared Connections3 tools both integrate with
Only DeepEval (4)
RAGASOpenAI APITruLensInspect
Only OpenAI API (27)
CrewAILlamaIndexAutoGenPydanticAIsmolagentsAgnoLangChainLiteLLMHeliconeMastra
Explore the full AI landscape
See how DeepEval and OpenAI API fit into the bigger picture — 207 tools, 452 relationships, all mapped.