TruLens

Evaluate and track LLM app quality with explainable feedback

Data & AnalyticsFree

TruLens is an open-source library for evaluating and tracking the quality of LLM-powered applications. It wraps your LLM app with evaluation functions called 'feedbacks' that assess output quality on dimensions like answer relevance, context precision, groundedness, and harmlessness. TruLens records every LLM call with its evaluation scores in a local or cloud database, enabling teams to iterate confidently on prompts, RAG configurations, and model choices with measurable quality improvement.

Key Features

• ✓Feedback functions
• ✓RAG evaluation
• ✓LLM call recording
• ✓Quality tracking
• ✓Open source
• ✓Iterative improvement