ArticleDeepset Haystack TeamTutorial
Evaluating LLM outputs using proprietary APIs can be cost-prohibitive and violate data privacy standards. Prometheus 2 provides an open, customisable alternative that runs within local or self-hosted Haystack pipelines.
Deepset focuses on bridging the gap between proprietary evaluation accuracy and open-source control. Prometheus 2 functions as a specialised LLM-as-a-judge, enabling reproducible quality assessments and custom rubrics within Haystack without third-party data exposure.
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