AI ranking change · 2026-07-13
Promptfoo overtakes LangSmith as Gemini's #1 pick
for llm evaluation tool
LangSmith→Promptfoo
On 2026-07-13, Gemini changed its #1 recommendation for best llm evaluation tool — dropping LangSmith from the top spot in favor of Promptfoo. The previous #1 had held since 2026-07-12.
“Outstanding developer experience for offline regression testing and prompt iteration. Its lightweight, CLI-first, YAML-driven design requires no heavy Python dependencies and integrates natively into CI/CD pipelines. It is the absolute gold standard for automated red-teaming, safety checks, and jailbreak testing across multiple models.”— Gemini
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