Best AI Model Guardrails Alternatives & Competitors in 2026

RealmGuard

AI guardrail platform detecting harmful outputs, prompt injections & policy violations.

ThirdLaw AI Control Layer

Runtime AI policy enforcement: capture, evaluate, intervene, and investigate AI sessions.

Vijil Dome

Runtime LLM guardrails blocking prompt injections, PII leakage & policy violations.

Airia AI Platform Guardrails

Runtime AI guardrails securing prompts, outputs, and agent workflows.

Guardrails AI OSS

Open-source framework for real-time LLM safety, policy & compliance enforcement.

AI Security Gateway™

OpenAI-compatible proxy for LLM DLP, PII redaction, and cost governance.

Portkey Guardrails for Bedrock

Configurable guardrails for Amazon Bedrock AI requests via an API gateway.

SlashLLM

AI security platform proxying LLM traffic with guardrails, SOC, and governance.

Senthex AI Firewall

Proxy-based AI firewall with 26 shields and verifiable audit trail for LLMs.

FireGuard

Policy enforcement & monitoring layer for Microsoft Copilot deployments.

Openlayer LLM Observability

LLM pipeline observability: tracing, monitoring, and alerting for GenAI systems.

First Recon AI Firewall

Inline firewall inspecting AI prompts/responses for injections & policy violations.

Pangea AI Security Platform

Platform securing AI apps and employee AI use via guardrails & threat detection.

PointGuard AI Intelligent Guardrails

Runtime guardrails for LLM prompts/responses: detects data leaks & prompt injection.

Impart LLM Security

LLM security platform detecting prompt injection, jailbreaks, and abuse

Promptfoo Guardrails

Adaptive LLM guardrails that self-improve via red team feedback loops.

Confident Security

Platform for securing, governing, and monitoring AI/LLM deployments.

CloudMatos Prompt Firewall

Firewall for LLM systems preventing prompt injection, data leaks & jailbreaks

DeepKeep LLM

End-to-end LLM security platform protecting against attacks and data leakage

AIShield Guardian

Middleware guardrail securing LLM inputs/outputs for enterprise GenAI compliance.

Daxa.ai Pebblo

Dual-layer AI security platform for RAG chatbots covering model and retrieval.

LLM Guard

LLM Guard is a security toolkit that enhances the safety and security of interactions with Large Language Models (LLMs) by providing features like sanitization, harmful language detection, data leakage prevention, and resistance against prompt injection attacks.

Verax Protect

Platform for monitoring and securing LLMs in production environments

Tumerik AI Trust Score™

Real-time AI application security with trust scoring and guardrails

Alibaba Cloud AI Guardrails

Real-time AI content moderation and prompt injection defense for AIGC applications.

Sinaptic AI Data Protection

Browser extension preventing PII/PHI leakage to AI services like ChatGPT

CyCraft XecGuard

AI guardrail module protecting LLMs from prompt injection and jailbreak attacks

DeepKeep

Centralized governance and security platform for employee LLM interactions

Prompt Security GenAI Solutions

GenAI security platform for shadow AI discovery, prompt injection defense & DLP

Aiceberg Risk Signals Library

Library of AI threat detection signals for securing generative AI models

Dynamo AI DynamoGuard

Real-time AI guardrails platform for detecting misuse, hallucinations & attacks

Defend AI

Defend AI delivers runtime security guardrails with >98.1% accuracy and subsecond latency.

Magier AI

End-to-end LLM security platform protecting GenAI interactions & applications

FireTail Centralized AI Logging

Aggregates & analyzes LLM logs from multiple AI providers for security & governance.

Check Point Lakera

Runtime security platform for GenAI apps with threat detection & guardrails

White Circle Control Your AI

AI control layer for testing, protecting, observing, and optimizing AI apps

Witness Protect

Enterprise AI firewall protecting AI agents, models, and chatbots from attacks

DeepKeep for AI Applications

Security platform for AI applications across development and production

DeepKeep AI Firewall

Runtime protection firewall for AI systems and applications

SUPERWISE Guardrails

Runtime guardrails for AI/LLM apps blocking violations in under 10ms

Eroun&Company SAIFE X

GenAI security platform protecting against data leaks and prompt attacks

AGAT SphereShield

UC security platform with DLP, ethical wall, archive & eDiscovery.

Daxa Pebblo (HPE Secure AI Factory)

Shift-left AI data security gateway blocking sensitive data before LLM ingestion.

Daxa.ai Proxima

AI data gateway securing LLM interactions by monitoring and redacting sensitive data.

Private AI PrivateGPT

Redacts PII from user inputs before sending to ChatGPT for GDPR/HIPAA compliance.

Repello AI ARGUS

Runtime security platform providing guardrails for LLMs and GenAI agents.

Secuvy AI Data Security

Agentless AI data security platform preventing sensitive data leakage into LLMs.

Calypso AI Inference Platform

Platform securing AI models at inference with red-teaming, defense & monitoring