multi-dimensional trustworthiness evaluation across 6 core dimensions
Orchestrates systematic evaluation of LLM outputs across Truthfulness, Safety, Fairness, Robustness, Privacy, and Machine Ethics using a modular evaluation pipeline. Each dimension contains 2-4 sub-tasks with dedicated evaluation logic (pattern matching, model-based grading, deterministic metrics). The framework loads 30+ datasets, routes them through dimension-specific evaluators, and aggregates results into comparative rankings across models.
Unique: Combines 6 orthogonal trustworthiness dimensions (not just safety or factuality) with 30+ datasets and mixed evaluation strategies (pattern matching, LLM-as-judge, deterministic metrics, external APIs). Supports both online and local model backends with unified configuration, enabling fair comparison across proprietary and open-source models in a single benchmark run.
vs alternatives: More comprehensive than single-dimension benchmarks (e.g., TruthfulQA for truthfulness only) and more accessible than custom evaluation pipelines because it bundles datasets, evaluators, and reporting in one framework.
two-stage generation-then-evaluation pipeline orchestration
Implements a decoupled workflow where Stage 1 (LLMGeneration) runs inference on all benchmark prompts and caches responses to JSON, then Stage 2 (evaluation functions) processes cached outputs without re-querying models. Generation stage uses multi-threaded API calls (default GROUP_SIZE=8) for online models or fastchat backend for local models. Evaluation stage applies dimension-specific logic (regex, model-based grading, API calls) to pre-generated responses, enabling cost-efficient re-evaluation and result reproducibility.
Unique: Decouples inference from evaluation with explicit caching, allowing cost-efficient re-evaluation and metric iteration. Uses GROUP_SIZE-based multi-threading for parallel API calls rather than async/await, making it simpler to reason about concurrency limits and rate-limiting per provider.
vs alternatives: More cost-effective than frameworks that re-query models for each evaluation metric, and more reproducible than end-to-end pipelines that don't cache intermediate responses.
longformer-based toxicity classification for safety evaluation
Implements HuggingFaceEvaluator class that uses a pre-trained Longformer classifier (fine-tuned on toxicity detection) to score model responses for offensive language and harmful content. Loads model weights from HuggingFace, batches inputs for efficiency, and outputs toxicity scores (0-1 scale). Runs locally without API calls, enabling fast and cost-free toxicity evaluation. Complements Perspective API for redundant toxicity scoring.
Unique: Uses Longformer (efficient transformer for long sequences) for local toxicity classification, avoiding external API dependencies. Enables batch processing for cost-free, privacy-preserving toxicity evaluation.
vs alternatives: Faster and cheaper than Perspective API for large-scale evaluation, though potentially less accurate due to dataset-specific training.
perspective api integration for external toxicity scoring
Integrates Google's Perspective API to score model responses for toxicity, severe toxicity, profanity, and other harmful attributes. Sends responses to Perspective API, parses structured toxicity scores, and aggregates results. Provides ground-truth toxicity scoring from an external, widely-used service. Complements local Longformer classifier for redundant toxicity evaluation and cross-validation.
Unique: Integrates Google's Perspective API for external toxicity validation, enabling cross-checking against industry-standard toxicity detection. Provides multiple toxicity dimensions (toxicity, severe toxicity, profanity) rather than single toxicity score.
vs alternatives: More authoritative than local classifiers because it uses Google's widely-adopted toxicity standards, though slower and rate-limited compared to local evaluation.
multi-model comparative ranking and leaderboard generation
Aggregates evaluation scores across all models and dimensions to generate comparative rankings and leaderboards. Computes per-dimension scores, overall trustworthiness score (weighted average), and model rankings. Generates visualizations (rank cards, score distributions) and exportable leaderboard data (JSON, CSV). Enables fair comparison across heterogeneous models (proprietary, open-source, fine-tuned) evaluated on identical benchmarks.
Unique: Generates multi-dimensional leaderboards that show per-dimension scores and overall rankings, enabling nuanced comparison rather than single-metric ranking. Supports customizable dimension weighting for different use cases.
vs alternatives: More informative than single-metric leaderboards because it shows trade-offs across dimensions (e.g., a model may be safe but unfair), helping stakeholders make context-aware decisions.
dataset management and benchmark curation with 30+ integrated datasets
Manages a curated collection of 30+ benchmark datasets across 6 trustworthiness dimensions, with standardized loading, preprocessing, and metadata. Datasets are stored in JSON format with prompts, expected outputs, metadata (difficulty, domain, language), and evaluation instructions. Provides utilities for dataset filtering (by dimension, domain, language), splitting (train/test), and versioning. Enables reproducible benchmarking by pinning dataset versions.
Unique: Bundles 30+ curated datasets across 6 trustworthiness dimensions with standardized format and metadata, enabling one-command access to comprehensive benchmarks. Supports dataset versioning for reproducibility.
vs alternatives: More convenient than assembling datasets from multiple sources because it provides integrated, standardized datasets with metadata and filtering utilities.
configuration-driven model and evaluator routing
Centralizes model and evaluator configuration in trustllm/config.py and trustllm/prompt/model_info.json, enabling dynamic routing without code changes. Configuration specifies model provider, API endpoint, credentials, inference parameters (temperature, max_tokens), and evaluator selection (GPT-4, Longformer, Perspective API). Supports environment variable overrides for credential management and multi-environment deployment (dev, staging, prod).
Unique: Centralizes model and evaluator configuration in JSON/Python files with environment variable overrides, enabling configuration-driven routing without code changes. Supports multi-environment deployment patterns.
vs alternatives: More flexible than hardcoded model selection and more accessible than programmatic configuration because it enables non-technical users to configure benchmarks.
unified model backend abstraction for online and local inference
Provides a single LLMGeneration interface that routes to either online APIs (OpenAI, Anthropic, Google, Replicate, DeepInfra, Ernie) or local models (HuggingFace weights via fastchat backend). Configuration-driven model selection via trustllm/config.py and trustllm/prompt/model_info.json allows swapping backends without code changes. Handles API credential management, request formatting, response parsing, and error handling uniformly across heterogeneous model providers.
Unique: Single unified interface (LLMGeneration) abstracts both online APIs and local models, with configuration-driven routing via model_info.json. Handles credential management, request formatting, and response normalization for 6+ online providers and local HuggingFace/fastchat backends without requiring provider-specific code.
vs alternatives: More flexible than provider-specific SDKs and more standardized than ad-hoc wrapper scripts because it enforces consistent configuration and response formats across all backends.
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