AI Governance Safety & Evaluation Usage Based

Preamble

Guardrails, monitoring, and security controls for enterprise AI use

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PricingUsage Based
Starting price$0.005/API call
Free planNo
Free trialYes
APIYes
Open sourceNo
DeploymentHybrid
Last verifiedAugust 1, 2026
Overview

Tool overview

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

Summary

What is Preamble?

Preamble provides guardrails and governance for AI applications and enterprise AI use. Its platform can inspect content before it reaches models, enforce configurable rules, monitor activity, protect knowledge access, and support cloud or on-premises deployment.

Best fit

Best for

Organizations deploying guardrails around enterprise and application AI use

Audience

Who is it for?

Security teamsCompliance teamsAI application teamsEnterprise IT administrators
Recommendation

Decision note

Accepted with a 91/100 candidate score after official-source review, product-availability checks, category validation, and duplicate screening.

Capabilities

Key features

Configurable AI guardrails and content inspection

Blocking and redaction before third-party model calls

Activity monitoring, knowledge base, and AI assistants

Cloud and on-premises enterprise deployment

Workflows

Use cases

Protect custom AI application calls

Govern employee use of AI tools

Prevent sensitive-data exposure

Monitor policy violations and prompt-injection attempts

Strengths

Pros

  • Publishes clear plan prices
  • Supports API-call and per-user models
  • Offers cloud and on-premises options
Considerations

Limitations

Preamble reduces policy and data-exposure risks but cannot guarantee complete protection or model correctness. Teams still need identity controls, secure application design, logging, incident response, testing, and human oversight for sensitive workflows.

Cost

Pricing details

Pricing modelUsage Based
Starting price$0.005/API call
Free planNo
Free trialYes
Pricing context

Billing options

Usage-based APIPer-user monthlyPerpetual Enterprise license
Pricing context

Pricing note

Compliance starts at $0.005 per API call. SMB costs $50 per user monthly for up to 500 users. Enterprise is listed at $750,000 for a perpetual on-premises license. Compliance and SMB advertise a 30-day free trial without a credit card.

View official pricing
Compatibility

Supported languages

  • English
Specs

Technical details

PlatformsWeb, API
Multilingual supportUnknown
Login requiredYes
Open sourceNo
DeploymentHybrid
CompanyPreamble
Editions / plansCompliance SMB Enterprise
Data confidenceHigh
Last verifiedAugust 1, 2026
Documentation → Data source →
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Answers

Frequently asked questions

Preamble provides guardrails and governance for AI applications and enterprise AI use. Its platform can inspect content before it reaches models, enforce configurable rules, monitor activity, protect knowledge access, and support cloud or on-premises deployment.
Organizations deploying guardrails around enterprise and application AI use
The listed pricing model for Preamble 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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