These tools integrates with
OpenAI APIvsDeepEval
GPT-4o, o1, and embeddings from OpenAI versus LLM evaluation framework — 14+ metrics
Compare interactively in Explore →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
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
Side-by-side comparison
Field
OpenAI API
DeepEval
Category
LLM Infrastructure
Prompt & Eval
Type
Commercial
Open Source
Free Tier
✗ No
✓ Yes
Pricing Plans
API: Per token
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GitHub Stars
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⭐ 5,500
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 Connections2 tools both integrate with
Only OpenAI API (19)
CrewAIAutoGenLangChainLlamaIndexMastraPydanticAIsmolagentsAgnoLiteLLMPortKey
Only DeepEval (2)
RAGASOpenAI API
Explore the full AI landscape
See how OpenAI API and DeepEval fit into the bigger picture — 124 tools, 310 relationships, all mapped.