Comprehensive Guide to AI Testing & Monitoring Platforms - Discover, compare, and choose the perfect evaluation solution for your needs
Total Tools
No-Code Platforms
Python Libraries
Voice Tools
Open Source
Disclaimer: We do not endorse, suggest, or recommend any of these evaluation tools. This guide provides informational content only to help you explore available options. You must evaluate and select the tools that work best for your specific needs, requirements, and use cases. Please conduct your own research and due diligence before making any decisions.
38 tools found
Most popular Python library for LLM evaluation with specialized hallucination detection capabilities.
DeepEval has become the go-to Python library for LLM evaluation, offering the perfect balance of ease-of-use and powerful features. With its specialized focus on hallucination detection and flexible LLM integration, it's the preferred choice for developers who need reliable evaluation in their Python workflows.
Completely free and open-source
User-friendly LLM engineering platform with comprehensive evaluation capabilities for production use-cases.
Agenta stands out as the most intuitive LLM engineering platform, offering a complete toolkit for prompt engineering, versioning, evaluation, and observability. Built with production environments in mind, it provides systematic evaluation capabilities that make it easy to test, compare, and optimize your AI applications.
Free tier available, Pro at $49/month, Enterprise at $399/month
Full-stack LLM engineering platform for debugging, evaluating, and improving AI applications.
LangFuse provides a complete ecosystem for LLM application development, combining powerful debugging tools with comprehensive evaluation capabilities. Trusted by thousands of developers, it offers enterprise-grade security while maintaining an intuitive interface for both technical and non-technical users.
Free tier available, Pro at $59/month, Enterprise at $199/month
Leading automated voice agent testing platform with comprehensive conversation simulation.
Hamming AI revolutionizes voice agent testing by simulating thousands of concurrent phone calls to identify bugs and performance issues before they reach users. With the most comprehensive voice metrics in the industry, it's the go-to platform for voice AI quality assurance.
Enterprise pricing based on usage and requirements
Open-source evaluation platform with 40+ metrics for debugging and optimizing LLM applications.
LangWatch offers the most comprehensive set of evaluation metrics in the industry, providing over 40 pre-built metrics for assessing LLM pipeline performance. As an open-source platform, it gives teams complete control over their evaluation processes while maintaining enterprise-grade security and compliance.
Free tier available, Pro at $59/month, Enterprise at $199/month
Free content safety classification for text and images with confidence scoring.
OpenAI's Moderation API provides robust content classification capabilities, detecting harmful content across multiple categories including hate speech, violence, and self-harm. With its multi-modal support and confidence scoring, it's an essential tool for content safety.
Completely free to use with OpenAI API
Open-source Python library with 100+ pre-made metrics for comprehensive ML and LLM evaluation.
Evidently AI offers one of the most comprehensive metric libraries in the industry, with over 100 pre-made metrics for ML and LLM evaluation. It's designed for both ad-hoc analysis and automated pipeline integration, making it versatile for various evaluation needs.
Open-source library free, commercial platform available
Comprehensive observability platform for monitoring, debugging, and improving production LLM applications.
Helicone provides end-to-end observability for LLM applications, offering powerful tools for monitoring performance, debugging issues, and improving model outputs in production environments. With its robust API and comprehensive analytics, it's designed for teams that need deep insights into their AI applications.
Free tier available, Pro at $20/month, Enterprise at $200/month
Comprehensive debugging and monitoring platform from the creators of LangChain.
Built by the LangChain team, LangSmith provides deep integration with the LangChain ecosystem while offering standalone capabilities for any AI application. It combines powerful debugging tools with comprehensive monitoring and evaluation features.
Free tier available with usage limits, paid plans for production
Advanced content safety classification using Meta's 8B parameter language model.
Llama Guard 3 represents the cutting edge of content safety classification, using an 8B parameter language model to identify 14 categories of potential hazards. With multi-language support and optimization for safety-critical applications, it's designed for enterprise-grade content moderation.
Open-source model available for free use
Open-source command-line tool for systematic prompt testing with comprehensive evaluation capabilities.
Promptfoo is a powerful open-source tool designed for developers who prefer command-line interfaces for prompt testing. It offers comprehensive evaluation capabilities including red teaming and jailbreak detection, making it ideal for security-conscious AI development.
Completely free and open-source
Enterprise-grade LLM observability with comprehensive security and performance monitoring.
Datadog LLM Observatory brings enterprise-grade monitoring to AI applications with seamless integration into the Datadog ecosystem. It provides comprehensive visibility into LLM chains with detailed tracing and real-time security monitoring.
Enterprise pricing as part of Datadog platform packages
Comprehensive framework for benchmarking language models across numerous standardized tasks.
The LM Evaluation Harness by EleutherAI is the gold standard for language model benchmarking. It provides a comprehensive framework for evaluating models across numerous standardized tasks with extensibility for custom evaluations and strong visualization integrations.
Open-source framework by EleutherAI
Specialized Python framework for evaluating Retrieval Augmented Generation (RAG) systems.
RAGAS focuses specifically on RAG evaluation, providing comprehensive metrics for assessing retrieval quality, generation faithfulness, and overall system performance. It's designed for teams building RAG applications who need specialized evaluation capabilities.
Open-source with optional commercial support
Professional GUI and SDK platform for AI development with comprehensive testing and monitoring tools.
Vellum AI provides a complete development environment for AI applications, combining an intuitive GUI with powerful SDK capabilities. Designed for professional AI development teams, it offers comprehensive tools for testing, evaluation, and monitoring with dedicated AI specialist support.
Custom enterprise pricing based on usage and requirements
Open-source platform for comprehensive AI application observability with Git-like versioning.
Laminar combines the power of open-source flexibility with enterprise-grade observability features. Its Git-like versioning system and dynamic few-shot examples make it ideal for teams who need systematic prompt improvement and comprehensive application monitoring.
Free tier available, Pro at $25/month, Enterprise at $50/month
Multi-class content filtering with configurable severity levels and groundedness detection.
Azure OpenAI Content Filtering provides comprehensive content safety with multi-class classification models that detect and filter harmful content across hate, sexual content, violence, and self-harm categories. With configurable severity levels and advanced features like groundedness detection, it's designed for enterprise-grade content moderation.
Free with Azure OpenAI service
AI-powered voice and chat simulation platform for reliable agent performance testing.
Coval specializes in simulating realistic user interactions with AI agents through both voice and chat channels. Using advanced AI-powered testing methodologies, it ensures your agents perform reliably across various scenarios and edge cases.
Contact for pricing based on testing requirements
Modular prompt composition platform with LEGO-like blocks for systematic prompt engineering.
Promptmetheus revolutionizes prompt engineering with its unique modular approach, allowing you to build prompts like LEGO blocks. This innovative platform helps you identify and remove unnecessary prompt components that don't affect output, making your prompts more efficient and easier for LLMs to follow.
Free trial available, Pro at $29/month, Enterprise at $99/month
End-to-end platform for managing the complete lifecycle of LLM applications with AI Gateway.
Orq.ai provides a comprehensive platform for the entire LLM application lifecycle, from development to deployment. With its AI Gateway feature, it offers unified access to multiple AI models while providing robust management, observability, and evaluation tools.
Custom enterprise pricing based on usage and requirements
Specialized benchmark for evaluating truthfulness in language models with human-aligned metrics.
TruthfulQA is a research-focused benchmark specifically designed to evaluate truthfulness in language models. It provides pre-defined datasets with human-aligned falsehood detection, making it ideal for research and academic applications focused on AI safety and truthfulness.
Completely free and open-source research tool
Standard NLP metrics library with comprehensive coverage of traditional evaluation methods.
Hugging Face Evaluate provides a comprehensive collection of standard NLP evaluation metrics including BLEU, ROUGE, METEOR, and BERTScore. As part of the Hugging Face ecosystem, it offers reliable, well-tested implementations of traditional NLP evaluation methods.
Free as part of Hugging Face ecosystem
Automated test set generation with RAGAS metrics integration and comprehensive RAG evaluation.
Giskard provides automated test set generation specifically designed for RAG (Retrieval Augmented Generation) systems. With RAGAS metrics integration and component-wise scoring, it offers deep analysis of RAG system performance and quality.
Open-source with optional commercial support
AI-powered platform for systematic prompt engineering with multi-model testing and optimization.
PromptPerfect leverages AI to optimize your prompts automatically, providing data-driven insights for prompt improvement. With support for multi-model testing and custom scoring functions, it enables systematic prompt optimization that goes beyond manual tweaking.
Free tier available, Pro at $19/month, Enterprise at $99/month
Beautiful AI application testing platform with powerful visualization and cross-team collaboration.
Langtail focuses on providing beautiful visualizations and powerful testing tools for AI applications. Designed for cross-functional teams, it bridges the gap between product, engineering, and business teams with intuitive interfaces and comprehensive testing capabilities.
Free tier available, Pro at $99/month, Enterprise at $499/month
Synthetic data generation framework with AI feedback integration and scalable pipelines.
Distilabel specializes in synthetic data generation with AI feedback loops, providing a unified API for creating high-quality, diverse datasets. It's designed for scalable, fault-tolerant pipelines that combine automated AI judging with human-in-the-loop review.
Open-source synthetic data framework
Multi-language content safety classification using Llama Guard 3 with 14 harmful categories.
Groq's content moderation leverages Llama Guard 3 to provide content safety classification across 14 harmful categories based on the MLCommons taxonomy. With support for 8 languages and simple safe/unsafe classification, it offers accessible yet comprehensive content moderation.
Free with Groq API usage
Secure platform for experimenting with multiple LLMs with advanced monitoring and protection.
Vercel's AI Playground provides a secure environment for LLM experimentation with built-in protection against abuse and unauthorized use. Integrated with Vercel's infrastructure, it offers enterprise-grade security and monitoring capabilities.
Free tier available, usage-based pricing for advanced features
Open-source AI engineering platform with centralized prompt management and comprehensive observability.
OpenLIT provides a complete open-source solution for AI engineering with centralized prompt repository, version control, and granular usage insights. With its secure vault for secrets management, it's designed for teams who need full control over their AI infrastructure.
Completely free and open-source
Specialized evaluation library focusing on answer relevance, fairness, bias, and sentiment analysis.
TruLens provides specialized evaluation functions for assessing critical aspects of LLM applications including groundedness, relevance, safety, and sentiment. It's particularly strong in areas of fairness and bias evaluation, making it valuable for responsible AI development.
Open-source evaluation library
Cloud-based incident management platform for comprehensive alert management and MTTR optimization.
BlueJay is a specialized incident management platform designed to optimize alert management processes for engineering teams. It focuses on reducing downtime and Mean Time to Resolution (MTTR) by providing comprehensive and effective alerting before incidents occur.
Contact for pricing information
Framework for validating and correcting LLM inputs and outputs using customizable guardrails.
Guardrails AI provides a comprehensive framework for implementing custom guardrails that validate and correct LLM inputs and outputs. It allows teams to define specific rules and constraints for their AI applications, ensuring outputs meet quality and safety standards.
Open-source framework
Versatile Python library with embedding-based, language-model-based, and LLM-based evaluation categories.
SAGA provides a comprehensive evaluation framework with metrics divided into three categories: embedding-based, language-model-based, and LLM-based evaluations. Built on Hugging Face Transformers and LangChain, it offers flexibility for various evaluation needs.
Open-source Python package
Online and offline evaluation platform with custom evaluators and real-time feedback integration.
Opper provides both online and offline evaluation capabilities with a focus on real-time feedback and guardrails. It offers flexible SDKs for Python and JavaScript, making it easy to integrate evaluation into existing workflows with custom evaluators and automated feedback systems.
Contact for pricing information
Automated voice agent testing with realistic conversation workflows and persona simulation.
Cekura (formerly Vocera) specializes in automated voice agent testing through realistic conversation simulation with customizable workflows and personas. It provides comprehensive monitoring, alerting, and performance insights specifically designed for voice AI applications.
$250-$1000 monthly or custom enterprise pricing
Automated vulnerability scanning for bias, PII leakage, toxicity, and prompt injection detection.
Deepteam provides comprehensive automated vulnerability scanning for AI applications, focusing on bias detection, PII leakage prevention, toxicity assessment, and prompt injection protection. It includes OWASP Top 10 compliance checks and NIST AI standards alignment.
Contact for pricing information
Open-source Python package for AI voice agent testing with LLM-based conversation evaluation.
Fixa is a lightweight, open-source Python package designed specifically for AI voice agent testing. It uses voice agents to call your voice agent and then employs LLMs to evaluate the conversation quality, making it ideal for developers who need programmatic voice testing.
Completely free and open-source
AI testing platform with simulated scenarios, custom datasets, and real-time performance tracking.
Test AI simplifies AI testing with a comprehensive platform that includes simulated scenarios, custom dataset creation, and real-time tracking. It offers performance insights, notifications, and a user-friendly interface designed for optimization and quality assurance.
Various plans and packages available
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