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Evaluation, red-team & safety

Eval harnesses, red-teaming, guardrails, and safety tooling for agent systems.

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Organic ranking

Free: overall score + blurb. Voice / Builder / Fresh columns unlock with Pro

# Tool Overall Voice Builder Fresh Pricing Categories
#1 LangSmith
Observability, evaluation, and deployment platform for LangChain/LangGraph agents.
6.80 0.0 0.0 0.0 freemium Deploy & observability, Eval & safety
#2 Arize Phoenix
Open-source AI observability and eval for traces, embeddings, and LLM apps.
6.00 0.0 0.0 0.0 freemium Deploy & observability, Eval & safety
#3 Ragas
Evaluation framework for RAG and LLM applications with reference-free metrics.
5.80 0.0 0.0 0.0 free Eval & safety