AI Security Gateway™ vs LLM Guard: Side-by-Side Comparison (2026)

AI Security Gateway™: OpenAI-compatible proxy for LLM DLP, PII redaction, and cost governance. built by AI Security Gateway. Core capabilities include 28+ PII entity type detection and redaction using NLP, Image OCR scanning for PII in vision requests, Prompt injection and jailbreak blocking..

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..

Both serve the LLM Guardrails market but differ in approach, feature depth, and target audience.

AI Security Gateway™ is developed by AI Security Gateway founded in 2025-01-01T00:00:00.000Z. LLM Guard is open-source with 2,043 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

AI Security Gateway™ and LLM Guard serve similar LLM Guardrails use cases: both are LLM Guardrails tools, both cover Prompt Injection, LLM Security, LLM Guardrails. Key differences: AI Security Gateway™ is Commercial while LLM Guard is Free, LLM Guard is open-source. Review the feature comparison above to determine which fits your requirements.