ModelsAgree

AI ranking change · 2026-07-13

DeepEval overtakes LangSmith as ChatGPT's #1 pick

for rag evaluation tool

LangSmithDeepEval

On 2026-07-13, ChatGPT changed its #1 recommendation for best rag evaluation tool — dropping LangSmith from the top spot in favor of DeepEval. The previous #1 had held since 2026-07-12.

Best overall balance of RAG-specific retrieval and generation metrics, 50+ evaluators, synthetic test generation, component tracing, custom judges, and pytest-native CI gating; Apache-2.0 and local-first make it unusually strong value.ChatGPT

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