Evals

TruLens

TruLens is an open-source evaluation and tracing platform for AI agents that helps developers "move from vibes to metrics." Its feedback-function library covers the RAG triad — groundedness (responses supported by retrieved content), context relevance (retrieved documents match the query), and answer relevance (responses address the user question) — plus coherence, comprehensiveness, toxicity, sentiment, fairness, and custom metrics. Integrates with OpenTelemetry traces and any agent framework.

GitHub

Documentation

📖
Documentation
https://www.trulens.org/

SDKs

📦
GitHubRepository
https://github.com/truera/trulens

API entry from apis.yml

apis.yml Raw ↑ 
name: TruLens
description: TruLens is an open-source evaluation and tracing platform for AI agents that helps developers
  "move from vibes to metrics." Its feedback-function library covers the RAG triad — groundedness (responses
  supported by retrieved content), context relevance (retrieved documents match the query), and answer
  relevance (responses address the user question) — plus coherence, comprehensiveness, toxicity, sentiment,
  fairness, and custom metrics. Integrates with OpenTelemetry traces and any agent framework.
humanURL: https://www.trulens.org/
baseURL: https://www.trulens.org
tags:
- Open Source
- RAG Triad
- Feedback Functions
- Snowflake
- OpenTelemetry
properties:
- type: Documentation
  url: https://www.trulens.org/
- type: GitHubRepository
  url: https://github.com/truera/trulens