LaunchDevelopersAugust 26, 2026

LangChain releases open-source auto-evaluator for QA chains

LangChain open-sourced an auto-evaluator tool that auto-generates QA test sets and grades answers for LLM question-answer chains, now available as a free hosted app and API. It combines Anthropic's model-written evaluation sets with OpenAI's model-graded evaluation.

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LangChain releases open-source auto-evaluator for QA chains — AIBriefs