This guide explains how to integrate Fiddler with TrueFoundry to enhance the evaluation and testing of your LLM applications.

​
What is Fiddler?

Fiddler Guardrails delivers enterprise-grade protection for LLM applications by moderating prompts and responses in real time. It mitigates risks such as hallucinations, toxicity, safety violations, prompt injections, and jailbreaks using proprietary task-optimized Trust Models.

​
Key Features of Fiddler

  1. Ultra-Low Latency: Delivers moderation in under 100 ms for seamless real-time user experiences
  2. Built for Scale: Reliably processes over 5 million requests per day with enterprise-grade performance.
  3. Optimized Efficiency: Task-specific Trust Models ensure high accuracy while minimizing compute costs.

​
Adding Fiddler Integration

To add Fiddler to your TrueFoundry setup, follow these steps: Fill in the Guardrails Group Form
  • Name: Enter a name for your guardrails group.
  • Collaborators: Add collaborators who will have access to this group.
  • Fiddler Config:
    • Name: Enter a name for the Fiddler configuration.
    • Threshold (Optional): Enter a threshold value.
    • Guard Type: Select the type of guard from the available options:
      • Fiddler-Safety: Identifies harmful, sensitive, or jailbreaking content in the inputs of your generative application.
      • Fiddler-Response-Faithfulness: Detects hallucination by evaluating responses of your generative application for their factual consistency with source context.
  • Auth Data
    • API Key: Enter your Fiddler API key in this field. You can get one from here.
TrueFoundry interface for configuring Fiddler with fields for name and guard type selection

Fiddler Integrations Form

​
Response Structure

The Fiddler API returns a response with the following structure:

​
Validation Logic

TrueFoundry uses the Fiddler response to determine content safety and compliance:
  • For Fiddler-Safety if any category scores is above threshold it means content violates the configured guardrails and request will be rejected.
  • Category scores are evaluated against configured thresholds, with scores of 1 indicating policy violations in Fiddler-Safety.
  • For Fiddler-Response-Faithfulness 1 means the response is faithful according to the context provided.
  • Default threshold for "Fiddler-Safety" is 0.7 and "Fiddler-Response-Faithfulness" is 0.5.