📖 The AI Tool Bible

Best AI tools for safety testing

14 tools in the Evaluation category, filtered to safety testing.

All Evaluation

Patronus

Evaluation · Platform (any LLM)
7.8

Automated LLM evaluation for hallucinations, safety, and quality.

Paid· Enterprise / contact saleshallucination detectionsafety

Arize AI

Evaluation · Multi-model

Enterprise observability and evaluation platform for LLM agents and generative AI applications.

Freemium· Free tier and OSS Phoenix; paid/enterprise tiers via salesllm-observabilityagent-evaluation

Giskard

Evaluation · Multi-model

Continuous AI red teaming platform that stress-tests LLM agents for vulnerabilities before they hit production.

Freemium· Open-source free tier; Giskard Hub enterprise pricing on requestllm-red-teamingagent-security-testing

Great Expectations

Evaluation

Open-source data quality framework for validating the datasets that feed your ML and analytics pipelines.

Freemium· GX Core free (Apache 2.0); GX Cloud paid tiers, contact salesdata-validationpipeline-testing

HoneyHive

Evaluation · Multi-model

OpenTelemetry-native observability and evaluation platform for LLM agents in production.

Freemium· Free tier available; paid/enterprise tiers via salesagent-observabilityllm-evaluation

Inspect AI

Evaluation · Multi-model

Open-source LLM evaluation framework from the UK AI Security Institute with 200+ built-in benchmarks.

Free· Free and open source (MIT-style license); you pay only for underlying model API usage.llm-benchmarkingagent-evaluation

LLMEval

Evaluation · Multi-model

Open academic benchmark suite for stress-testing LLMs on contamination-resistant, domain-specific tasks.

Free· Free; open-source academic benchmarksllm-benchmarkingacademic-evaluation

LangFast

Evaluation · Multi-model

No-signup LLM playground for testing, comparing, and versioning prompts against your own API keys.

Paid· One-time lifetime ~$60-$120; 14-day money-backprompt-testingprompt-versioning

OpenAI Evals

Evaluation · OpenAI GPT models (extensible)

OpenAI's open-source framework for benchmarking LLMs against a shared registry of evaluations.

Free· Free (MIT); you pay OpenAI API costs for eval runsllm-benchmarkingregression-testing

Opik

Evaluation · Multi-model

Open-source LLM observability and evaluation platform for debugging and monitoring AI agents in production.

Freemium· Free open-source self-host; free Cloud tier (no card); Enterprise contact salesllm-tracingagent-evaluation

Prompt Foundry

Evaluation · OpenAI + Anthropic (multi-model)

Prompt management and side-by-side LLM evaluation for OpenAI and Anthropic models.

Freemium· Free tier (10 prompts, 500 evals/mo); Pro $15/user/mo; Enterprise customprompt-managementmodel-comparison

Promptfoo

Evaluation · Multi-model

Open-source eval and red-teaming framework for LLM apps, prompts, and RAG pipelines.

Freemium· Open-source free; Enterprise SaaS contact salesllm-evalsred-teaming

TruLens

Evaluation · Multi-model (LLM-as-judge)

Open-source evaluation and tracing framework for LLM apps and agents, built on OpenTelemetry.

Free· Free, open source (Apache-licensed Python package)llm-evaluationrag-evaluation

W&B Weave

Evaluation · Multi-model

Production observability, tracing, and evaluation for LLM and agent systems from the Weights & Biases stack.

Freemium· Free tier available; paid and enterprise plans via W&Bllm-tracingagent-observability