# First Recon AI Firewall vs ZenGuard: 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). [ZenGuard](https://cybersectools.com/tools/zenguard) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [ZenGuard](https://cybersectools.com/companies/zenguard). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | First Recon AI Firewall | ZenGuard |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | Agentic AI Security |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | First Recon AI | ZenGuard |
| Headquarters | – | – |

### Use cases and capabilities

| | First Recon AI Firewall | ZenGuard |
|---|---|---|
| AI Firewall | Yes | – |
| LLM Guardrails | Yes | Yes |
| Prompt Injection | Yes | Yes |
| LLM Security | Yes | Yes |
| AI Observability | Yes | Yes |
| Data Exfiltration | Yes | – |
| GenAI Security | Yes | Yes |
| Content Filtering | Yes | Yes |
| Agentic AI Security | Yes | Yes |
| Policy | Yes | – |
| AI Pentesting | – | Yes |
| PII | – | Yes |
| Runtime Security | – | Yes |

### Core features

**First Recon AI Firewall**

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

**ZenGuard**

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

### Integrations

**First Recon AI Firewall**

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

**ZenGuard**

1 integration listed. Sign in on the page to see them.

## 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.
- [ZenGuard](https://cybersectools.com/tools/zenguard) fits if you want a cloud product and you are a startup.

## First Recon AI Firewall vs ZenGuard FAQ

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

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

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

**ZenGuard**: Runtime protection and security testing platform for LLM-based AI agents. Built by ZenGuard.

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

### Who makes First Recon AI Firewall and ZenGuard?

**First Recon AI Firewall** is made by First Recon AI. **ZenGuard** is made by ZenGuard. 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 ZenGuard?

In part. First Recon AI Firewall and ZenGuard are not in the same category on CybersecTools. Both cover LLM Security, LLM Guardrails, Prompt Injection. 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 ThirdLaw AI Control Layer](https://cybersectools.com/compare/first-recon-ai-firewall-vs-thirdlaw-ai-control-layer)
- [First Recon AI Firewall vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/first-recon-ai-firewall-vs-portkey-guardrails-for-bedrock)
- [ZenGuard vs Airia AI Platform Guardrails](https://cybersectools.com/compare/airia-ai-platform-guardrails-vs-zenguard)
- [ZenGuard vs ThirdLaw AI Control Layer](https://cybersectools.com/compare/thirdlaw-ai-control-layer-vs-zenguard)
- [ZenGuard vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/portkey-guardrails-for-bedrock-vs-zenguard)

## Alternatives to each

- [See all First Recon AI Firewall alternatives](https://cybersectools.com/alternatives/first-recon-ai-firewall)
- [See all ZenGuard alternatives](https://cybersectools.com/alternatives/zenguard)

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

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More on First Recon AI Firewall and ZenGuard: 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