Antigen

Continuous offensive security testing for enterprise software environments

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PricingEnterprise Only
Starting priceContact sales
Free planNo
Free trialYes
APIUnknown
Open sourceNo
DeploymentCloud
Last verifiedJuly 30, 2026
Overview

Tool overview

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

Summary

What is Antigen?

Antigen runs continuous AI penetration tests and supplements them with monthly human red-team review. It delivers reproducible findings, execution traces, and remediation context through its platform and engineering tools such as GitHub and Linear.

Best fit

Best for

Security teams evaluating and governing authorized systems

Audience

Who is it for?

Security engineersAppSec teamsCompliance leadersAI security teams
Recommendation

Decision note

Suitable for evaluation after confirming final commercial terms, permissions, data handling, current product scope, and edit-screen aliases. Keep Needs Review enabled until a human verifies the published profile.

Capabilities

Key features

Continuous offensive testing

Real-environment validation

Enterprise security workflows

Workflows

Use cases

Finding exploitable weaknesses

Testing production-like systems

Strengthening security assurance

Strengths

Pros

  • Targets a defined security risk
  • Supports continuous testing
  • Improves operational visibility
Considerations

Cons

  • False positives require review
  • Setup needs security expertise
  • Testing may affect connected systems
Considerations

Limitations

Use security automation only on systems you own or are authorized to test. Review findings manually, isolate experiments, protect credentials, and avoid destructive actions in production.

Cost

Pricing details

Pricing modelEnterprise Only
Starting priceContact sales
Free planNo
Free trialYes
Pricing context

Billing options

Custom security agreementApplication scope termsOngoing testing program
Pricing context

Pricing note

Antigen sells continuous penetration testing and human red-team review through custom commercial terms. Booking a demo does not establish a Free Trial, and no continuing Free Plan was confirmed.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

GitHub

Linear

Specs

Technical details

PlatformsWeb
Multilingual supportUnknown
Login requiredYes
Open sourceNo
DeploymentCloud
CompanyAntigen, Inc.
Launch year2026
Models / versionsAutonomous security testing Human-validated findings Remediation guidance
Editions / plansContinuous AI penetration testing Monthly human red-team review Enterprise security program
Data confidenceHigh
Last verifiedJuly 30, 2026
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Answers

Frequently asked questions

Antigen runs continuous AI penetration tests and supplements them with monthly human red-team review. It delivers reproducible findings, execution traces, and remediation context through its platform and engineering tools such as GitHub and Linear.
Security teams evaluating and governing authorized systems
The listed pricing model for Antigen is Enterprise only. 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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