AI ranking change · 2026-06-30
LangSmith overtakes Braintrust as ChatGPT's #1 pick
for llm evaluation tool
Braintrust→LangSmith
On 2026-06-30, ChatGPT changed its #1 recommendation for best llm evaluation tool — dropping Braintrust from the top spot in favor of LangSmith. The previous #1 had held since 2026-06-30.
“Best all-around LLM app evaluation platform: tight tracing-to-dataset workflow, offline and online evals, human review queues, LLM-as-judge support, regression testing, and strong LangChain/LangGraph ecosystem pull.”— ChatGPT
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