# First Recon AI Firewall vs LLM Guard: side-by-side comparison (2026)

[First Recon AI Firewall](https://cybersectools.com/tools/first-recon-ai-firewall) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [First Recon AI](https://cybersectools.com/companies/first-recon-ai). [LLM Guard](https://cybersectools.com/tools/llm-guard) is a free [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | First Recon AI Firewall | LLM Guard |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | LLM Guardrails | LLM Guardrails |
| Verified | No | No |
| Deployment type | Hybrid | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 2,043 |
| Last commit | – | Sep 2025 |
| Company | First Recon AI | – |
| Headquarters | – | – |

### Use cases and capabilities

| | First Recon AI Firewall | LLM Guard |
|---|---|---|
| AI Firewall | Yes | – |
| LLM Guardrails | Yes | Yes |
| Prompt Injection | Yes | Yes |
| LLM Security | Yes | Yes |
| AI Observability | Yes | – |
| Data Exfiltration | Yes | – |
| GenAI Security | Yes | – |
| Content Filtering | Yes | – |
| Agentic AI Security | Yes | – |
| Policy | Yes | – |
| Open Source | – | Yes |
| Generative AI | – | Yes |

### Core features

**First Recon AI Firewall**

8 features listed. Sign in on the page to see them.

**LLM Guard**

No features listed.

### Integrations

**First Recon AI Firewall**

6 integrations listed. Sign in on the page to see them.

**LLM Guard**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [First Recon AI Firewall](https://cybersectools.com/tools/first-recon-ai-firewall) fits if you need both cloud and on-premises options.
- [LLM Guard](https://cybersectools.com/tools/llm-guard) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.

## First Recon AI Firewall vs LLM Guard FAQ

Common questions when comparing First Recon AI Firewall vs LLM Guard for LLM guardrails.

### What is the difference between First Recon AI Firewall and LLM Guard?

**First Recon AI Firewall**: Inline firewall inspecting AI prompts/responses for injections & policy violations. Built by First Recon AI.

**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.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes First Recon AI Firewall and LLM Guard?

**First Recon AI Firewall** is made by First Recon AI. **LLM Guard** is open-source with 2,043 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is First Recon AI Firewall a good alternative to LLM Guard?

Often, yes. First Recon AI Firewall and LLM Guard are both LLM Guardrails products, and both cover Prompt Injection, LLM Security, LLM Guardrails. Key differences: First Recon AI Firewall is Commercial while LLM Guard is Free, LLM Guard is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [First Recon AI Firewall vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-first-recon-ai-firewall)
- [First Recon AI Firewall vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/first-recon-ai-firewall-vs-portkey-guardrails-for-bedrock)
- [First Recon AI Firewall vs ThirdLaw AI Control Layer](https://cybersectools.com/compare/first-recon-ai-firewall-vs-thirdlaw-ai-control-layer)
- [LLM Guard vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-llm-guard)
- [LLM Guard vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/llm-guard-vs-portkey-guardrails-for-bedrock)
- [LLM Guard vs ThirdLaw AI Control Layer](https://cybersectools.com/compare/llm-guard-vs-thirdlaw-ai-control-layer)

## Alternatives to each

- [See all First Recon AI Firewall alternatives](https://cybersectools.com/alternatives/first-recon-ai-firewall)
- [See all LLM Guard alternatives](https://cybersectools.com/alternatives/llm-guard)

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Source: https://cybersectools.com/compare/first-recon-ai-firewall-vs-llm-guard

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/first-recon-ai-firewall.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on First Recon AI Firewall and 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=compare-md