# LLM Guard

LLM Guard is an LLM Guardrails product. It runs on-premises. Pricing is free.

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.

Checked October 2026.

## What is LLM Guard?

LLM Guard is a comprehensive tool designed to fortify the security of Large Language Models (LLMs) by offering sanitization, detection of harmful language, prevention of data leakage, and resistance against prompt injection attacks.

It provides a range of features, including prompt scanners, anonymization, and output scanners, to ensure safe and secure interactions with LLMs.

LLM Guard is an open-source solution that is easy to integrate and deploy in production environments, and is designed for easy integration and deployment in production environments.

It is available for download and installation via pip, and is compatible with Python 3.9 or higher.

The tool is constantly being improved and updated, and the community is encouraged to contribute to the package through bug reports, feature requests, and code contributions.

For more information, please refer to the documentation and contribution guidelines.

Tags: Open Source, Generative AI, Prompt Injection, LLM Security, LLM Guardrails

## Where it fits in your security program (NIST CSF 2.0)

- [Protect](https://cybersectools.com/guides/building-protect-program-small-team): helps you prevent attacks and keep data safe.

## Quick facts

- Category: [AI Security](https://cybersectools.com/categories/ai-security) · [LLM Guardrails](https://cybersectools.com/categories/llm-guardrails)
- Deployment: On-Premises
- Company size fit: Startup, SMB, Mid-Market, Enterprise
- Pricing model: Free
- GitHub stars: 2,043
- Website: github.com

## Where it ranks

No shortlist covers this product's category yet. The closest is [Best AI SOC Solutions for Business](https://cybersectools.com/shortlists/best-ai-soc-solutions).

## LLM Guard FAQ

### What is LLM Guard?

LLM Guard is a product in the LLM Guardrails category. It covers Open Source, Generative AI and Prompt Injection.

### What is the pricing for LLM Guard?

LLM Guard is free. Download and setup instructions are at https://github.com/protectai/llm-guard/.

### What are alternatives to LLM Guard?

Alternatives to LLM Guard listed on CybersecTools:

1. [Guardrails AI OSS](https://cybersectools.com/tools/guardrails-ai-oss) - Open-source framework for real-time LLM safety, policy & compliance enforcement. (Free)
2. [Promptfoo Guardrails](https://cybersectools.com/tools/promptfoo-guardrails) - Adaptive LLM guardrails that self-improve via red team feedback loops. (Commercial)
3. [Alibaba Cloud AI Guardrails](https://cybersectools.com/tools/alibaba-cloud-platform-for-ai) - Real-time AI content moderation and prompt injection defense for AIGC applications. (Commercial)
4. [Airia AI Platform Guardrails](https://cybersectools.com/tools/airia-ai-platform-guardrails) - Runtime AI guardrails securing prompts, outputs, and agent workflows. (Commercial)
5. [Impart LLM Security](https://cybersectools.com/tools/impart-llm-security) - LLM security platform detecting prompt injection, jailbreaks, and abuse (Commercial)

Compare all LLM Guard alternatives at [https://cybersectools.com/alternatives/llm-guard](https://cybersectools.com/alternatives/llm-guard)

### What deployment and organization size does LLM Guard fit?

LLM Guard is available as on-premises software. It is listed for startups, small businesses, mid-market companies and enterprises. It is free.

## Compare LLM Guard with similar solutions

- [LLM Guard vs Guardrails AI OSS](https://cybersectools.com/compare/guardrails-ai-oss-vs-llm-guard)
- [LLM Guard vs Promptfoo Guardrails](https://cybersectools.com/compare/llm-guard-vs-promptfoo-guardrails)
- [LLM Guard vs Alibaba Cloud AI Guardrails](https://cybersectools.com/compare/llm-guard-vs-alibaba-cloud-platform-for-ai)

All alternatives to LLM Guard: [/alternatives/llm-guard](https://cybersectools.com/alternatives/llm-guard)

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Source: https://cybersectools.com/tools/llm-guard

For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any compare page has a Markdown copy too (add .md to its URL).

More on LLM Guard: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md