These tools often paired with

DeepEvalvsPromptFoo

LLM evaluation framework — 14+ metrics versus CLI/library for prompt testing and red-teaming

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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 PromptFoo when…

  • You want CLI-first, config-driven LLM evals
  • Running eval suites in CI/CD pipelines is a goal
  • You need red-teaming and safety testing built in

Side-by-side comparison

Field
DeepEval
PromptFoo
Category
Prompt & Eval
Prompt & Eval
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
GitHub Stars
5,500
5,000
Health
80 Active
80 Active

DeepEval

Open-source evaluation framework with 14+ metrics including faithfulness, relevancy, and hallucination detection. Integrates with CI/CD.

PromptFoo

Test and compare prompts across models. Built-in red-teaming, regression testing, and side-by-side model comparison.

Shared Connections3 tools both integrate with

Only DeepEval (4)

RAGASPromptFooTruLensInspect

Only PromptFoo (3)

VellumDeepEvalAgenta

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See how DeepEval and PromptFoo fit into the bigger picture — 207 tools, 452 relationships, all mapped.

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