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Fiddler AI

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Fiddler Auditor is a tool to evaluate language models.

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Fiddler AI

Added 1 June 2026

#ai-observability #evaluation #generative-ai #langchain #llms #nlp #robustness

Overview

Fiddler Auditor is a Python library for evaluating language models. It provides automated testing and validation of model performance, safety, and behavior.

Best for

Best for
Developers needing a lightweight, open-source tool to automate LLM evaluation in their workflow.

Use cases

  • Automate evaluation of LLM outputs for accuracy and safety
  • Run regression tests on model behavior after updates
  • Integrate model evaluation into CI/CD pipelines

Notes

Fiddler Auditor is a Python library for evaluating language models. It provides automated testing and validation of model performance, safety, and behavior.

191 stars on GitHub. Last updated 2024-03-11.

Use cases

  • Automate evaluation of LLM outputs for accuracy and safety
  • Run regression tests on model behavior after updates
  • Integrate model evaluation into CI/CD pipelines

Pros

  • Open source with a focused scope on LLM evaluation
  • Simple Python API for quick integration
  • Community-driven with active development

Cons

  • Limited to evaluation, not a full observability platform
  • Smaller community compared to larger frameworks
  • May lack advanced features for production monitoring

Indexed from awesome-llmops and enriched against its public facts.

Pros

  • Open source with a focused scope on LLM evaluation
  • Simple Python API for quick integration
  • Community-driven with active development

Cons

  • Limited to evaluation, not a full observability platform
  • Smaller community compared to larger frameworks
  • May lack advanced features for production monitoring