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Evidently AI: AI Evaluation and LLM Observability

Evidently AI helps AI builders and ML engineers validate model reliability. It is designed for teams that need to monitor production AI for safety risks and quality regressions.

At a glance

Best for
ML engineers, AI builders, Enterprise AI teams, Software companies building LLM apps
Pricing
Pricing includes free tiers for open-source and developers, with a Pro plan starting at $80/month. Enterprise pricing is custom.
Key use cases
RAG System Testing, Adversarial Testing, Production Model Monitoring, Multi-step Workflow Validation
Official website
evidentlyai.com/
Screenshot of Evidently AI website

Evidently AI provides a framework for testing and monitoring large language models (LLMs) and traditional machine learning systems. It is designed for software companies and enterprise teams that require a systematic evaluation process over manual spot-checks.

The platform supports various testing needs, including RAG evaluation to identify hallucinations and adversarial testing to probe for safety risks such as PII leaks. It offers an open-source Python library for local development and a managed cloud platform for team collaboration and alerting.

Buyers should confirm whether they require the no-code UI and managed hosting of the Cloud version or if the open-source library fits their technical workflow. Those with high data volumes should review the row limits associated with the different pricing tiers.

Key Features

LLM Evaluation Metrics

Includes over 100 built-in metrics to measure output accuracy, safety, and quality.

Synthetic Data Generation

Generates test inputs and adversarial scenarios to test AI resilience.

LLM-as-a-Judge

Uses external LLMs to automate the grading of AI responses based on specific criteria.

ML Monitoring

Tracks data drift and predictive quality for classifiers, recommenders, and regression models.

Hallucination and PII Detection

Identifies factually incorrect outputs and potential leaks of sensitive personal information.

Open-Source Python Library

Provides a library for running evaluations locally on a company's own infrastructure.

Use Cases

RAG System Testing

Evaluating retrieval quality and generation accuracy to help reduce hallucinations in chatbots.

Adversarial Testing

Testing AI agents against jailbreak attempts and harmful content prompts.

Production Model Monitoring

Tracking distribution shifts in production data to identify model drift over time.

Multi-step Workflow Validation

Testing AI agents that use tools and multi-step reasoning to validate outcomes.

Best For

ML engineersAI buildersEnterprise AI teamsSoftware companies building LLM apps

Pricing

Pricing includes free tiers for open-source and developers, with a Pro plan starting at $80/month. Enterprise pricing is custom.

FAQ

What can you evaluate with Evidently AI?

It supports generative AI tasks like RAG systems and AI agents, as well as predictive AI tasks including classification and recommendation systems.

Is there a free version of Evidently AI?

Yes, there is an open-source Python library and a free Developer plan for hobby projects and experiments.

How does the Pro plan differ from the Developer plan?

The Pro plan costs $80/month and increases limits to 100,000 rows per month, 100 GB of snapshots, and supports up to 5 seats.

Source category: Software Development

Source subcategory: Observability Platform

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Evidently AI: LLM Evaluation & Monitoring – AI Tools for Business