Top LLM Guard (Protect AI) Alternatives for 2026
LLM Guard (Protect AI) focuses on sanitization & detection. many teams evaluate alternatives for broader agent coverage, different deployment models, or pricing that fits their scale. Here are the top competitors to consider.
Category: Runtime Guardrails & AI Firewall • Last reviewed: 2026-07-03
What is LLM Guard (Protect AI)?
Comprehensive open-source toolkit to fortify LLM security, offering sanitization, detection, and prevention of attacks. Originally by Laiyer.ai, now maintained under Protect AI.
GuardionAI
Agent runtime governance — EDR for AI agents. Guardion governs every agent command, tool call, and data access inline: a security gateway, runtime guardrails, DLP, and detection & incident response for AI agents.
Why it's better than LLM Guard (Protect AI)
sub-130ms guardrails latency • 96.3 F1 on the Prompt Security Leaderboard with 0.02% false positives • 50M+ agent actions protected per month
Lakera (Check Point)
A focused runtime security layer protecting against prompt injection, PII leakage, and hallucinations via API. Acquired by Check Point in late 2025 (~$300M reported); Lakera Guard and Lakera Red remain live products and anchor Check Point's Center of Excellence for AI Security.
- High performance / Low latency
- Vast threat intelligence database
Meta (Llama Guard)
A set of LLM safeguards designed to detect violating content across multiple use cases. Model-based guardrail.
Prompt Security (SentinelOne)
Secures the entire lifecycle of Generative AI, protecting employees from risky AI use and developers from insecure model integrations. Acquired by SentinelOne in September 2025 (~$250M reported) and integrated into the Singularity platform for prompt injection, data leakage, and shadow AI protection.
Frequently asked questions
What is LLM Guard (Protect AI)?
Comprehensive open-source toolkit to fortify LLM security, offering sanitization, detection, and prevention of attacks. Originally by Laiyer.ai, now maintained under Protect AI. It is categorized under Runtime Guardrails & AI Firewall in the Guardion AI Security Index.
Is LLM Guard (Protect AI) open source?
Yes. LLM Guard (Protect AI) has an open-source core (https://github.com/protectai/llm-guard); pricing model: Open Source.
What are the best LLM Guard (Protect AI) alternatives?
Teams evaluating LLM Guard (Protect AI) most often compare it with Lakera (Check Point), Meta (Llama Guard), Prompt Security (SentinelOne), and GuardionAI — all listed under Runtime Guardrails & AI Firewall.
How does LLM Guard (Protect AI) compare to GuardionAI?
LLM Guard (Protect AI) focuses on sanitization & detection, while GuardionAI is an agent runtime governance platform ("EDR for AI agents") that governs every agent tool call inline with sub-130ms guardrails latency.
Last reviewed: 2026-07-03
Sources: github.com