AI Governance Safety & Evaluation Usage Based

Patronus AI

Evaluation, tracing, and simulation infrastructure for advanced AI systems

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PricingUsage Based
Free planUnknown
Free trialYes
APIYes
Open sourceNo
DeploymentCloud
Last verifiedAugust 3, 2026
Overview

Tool overview

Patronus AI is listed under AI Governance Safety & Evaluation AI tools.

Summary

What is Patronus AI?

Patronus AI provides experiments, evaluations, datasets, monitoring, traces, evaluators, and agent-debugging tools. Its product portfolio includes Lynx, Glider, Percival, multimodal judges, and simulation research for training and improving long-horizon agents.

Best fit

Best for

Teams evaluating and improving complex AI applications and agents

Audience

Who is it for?

AI engineersML researchersEvaluation teamsAI safety and reliability teams
Recommendation

Decision note

Strong candidate for the Data Analytics category. Verify logo, outreach, pricing, and editorial fit before publishing.

Capabilities

Key features

Evaluation API, Python SDK, and TypeScript client

Experiments, datasets, traces, logs, and comparisons

Lynx, Glider, Percival, and custom judges

Agent debugging, monitoring, guardrails, and simulations

Workflows

Use cases

Evaluate RAG and model outputs

Debug agent traces and planning errors

Monitor production AI quality

Generate tests, benchmarks, and simulation environments

Strengths

Pros

  • Research-backed evaluation models
  • API-driven and programmable workflows
  • Covers experiments, monitoring, and agent debugging
Considerations

Limitations

Evaluation models can be biased or inconsistent and simulations may not represent production reality. Teams need calibrated criteria, domain experts, representative datasets, human review, and independent safety or compliance controls for high-impact decisions.

Cost

Pricing details

Pricing modelUsage Based
Free planUnknown
Free trialYes
Pricing context

Billing options

Pay-as-you-go APICustom Enterprise agreement
Pricing context

Pricing note

Patronus officially describes a self-serve pay-as-you-go API and custom enterprise capabilities. A 2024 launch announcement included $5 in introductory credits, which is not treated as an ongoing free plan. Current public unit rates were not confirmed, so no starting amount is invented.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

Python

TypeScript and Node.js

ML and LLM application workflows

MCP clients

Specs

Technical details

PlatformsWeb, API
Multilingual supportUnknown
Login requiredYes
Open sourceNo
DeploymentCloud
CompanyPatronus AI
Models / versionsLynx-8B and Lynx-70B Glider Percival Multimodal LLM-as-a-Judge
Data confidenceHigh
Last verifiedAugust 3, 2026
Documentation → Data source →
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Answers

Frequently asked questions

Patronus AI provides experiments, evaluations, datasets, monitoring, traces, evaluators, and agent-debugging tools. Its product portfolio includes Lynx, Glider, Percival, multimodal judges, and simulation research for training and improving long-horizon agents.
Teams evaluating and improving complex AI applications and agents
The listed pricing model for Patronus AI is Usage-based. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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