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AI · alternatives · 2026

24 alternatives to Theseus Guard

The World's First Stateful AI Governance Platform

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1
    Guard▲373

    An AI that reads privacy policies for you

    2019 · its alternatives →

  2. 2

    Configurable safety control for enterprise agent deployment.

    Apr 2026 · elevenlabs.io · its alternatives →

  3. 3
    HOL Guard▲106

    The 1st Firewall for AI Agents

    Jul 2026 · hol.org · its alternatives →

  4. 4
    CtrlAI▲104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026 · github.com · its alternatives →

  5. 5

    Fast and adaptive security guardrail for AI agents

    2025 · guardion.ai · its alternatives →

  6. 6

    Anthropic and OpenAI's publicly available models are explicitly guard-railed so that they refuse offensive tasks. And their cyber-focussed models are gated for enterprises. This leaves SMEs and mid market open to major vulnerabilities. AI can be used as both an adversarial and defensive tool in the world of cyber. A worst case outcome is if only the adversaries have access. Meanwhile, most existing AI cyber tools are just wrappers. The problem is that they still have all the guardrails on from the foundation model where they will inherit its refusals. For this project we've post-trained a…

    Jun 2026 · argusred.com · its alternatives →

  7. 7

    Continuous security feedback for your repositories.

    2020 · guardrails.io · its alternatives →

  8. 8
    Guard▲13

    AI-powered cloud security, simplified

    2024 · its alternatives →

  9. 9

    AI security and governance platform, adopting generative AI

    Dec 2025 · beyondguard.ai · its alternatives →

  10. 10

    AI-powered firewall that instantly blocks malicious Web3.

    Jul 2026 · guardfast.vercel.app · its alternatives →

  11. 11

    An information-flow policy engine for LLM agents.

    24d ago · openappa.com · its alternatives →

  12. 12

    Unified platform for security, performance, and monitoring

    2024 · guardius.io · its alternatives →

  13. 13

    Your agent team, on your machine. Open-source harness for multi-user Claude agents. - yaodub/cast

    Jun 2026 · github.com · its alternatives →

  14. 14

    Runtime API enforcement for AI agents

    Dec 2025 · its alternatives →

  15. 15

    Real-time governance firewall for autonomous AI agents

    May 2026 · gateplex.ai · its alternatives →

  16. 16

    AI guardrails and governance for production GenAI

    Feb 2026 · guardrailx.org · its alternatives →

  17. 17

    Discover secure AI from Bastio AI Security. Govern Shadow AI and ensure EU AI Act compliance with our enterprise platform. Start your AI security audit today.

    2013 · bastio.com · its alternatives →

  18. 18
    Runwallfree tier▲9

    A Runtime security layer that lets AI agents execute safely

    Jul 2026 · runwall.vercel.app · its alternatives →

  19. 19

    Cryptographic guardrails for AI Agents

    Mar 2026 · docs.icme.io · its alternatives →

  20. 20

    AI security: monitor, detect threats, and block spam & scams

    2025 · guardfather.ai · its alternatives →

  21. 21

    Full visibility into your AI spend, before it goes rogue

    Aug 2026 · neatproxy.com · its alternatives →

  22. 22

    Detect & trace sensitive data with precision

    2025 · neurallens.ai · its alternatives →

  23. 23

    Real-time guardrails for agentic AI and enterprise workflows

    Jul 2026 · lineation.ai · its alternatives →

  24. 24

    Stop AI Compliance Violations Before They Cost You $100K+

    2025 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →