# Mirror Security vs Promptfoo Guardrails: side-by-side comparison (2026)

[Mirror Security](https://cybersectools.com/tools/mirror-security) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Mirror Security](https://cybersectools.com/companies/mirror-security). [Promptfoo Guardrails](https://cybersectools.com/tools/promptfoo-guardrails) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Promptfoo](https://cybersectools.com/companies/promptfoo). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Mirror Security | Promptfoo Guardrails |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | LLM Guardrails |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Mirror Security | Promptfoo |
| Headquarters | – | – |

### Use cases and capabilities

| | Mirror Security | Promptfoo Guardrails |
|---|---|---|
| RAG | Yes | – |
| LLM Guardrails | – | Yes |
| LLM Security | – | Yes |
| AI Firewall | – | Yes |
| Prompt Injection | – | Yes |
| GenAI Security | – | Yes |
| Red Team | – | Yes |
| Generative AI | – | Yes |
| Continuous Testing | – | Yes |
| Adversarial ML | – | Yes |
| AI Governance | – | Yes |

### Core features

**Mirror Security**

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

**Promptfoo Guardrails**

6 features 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.

- [Mirror Security](https://cybersectools.com/tools/mirror-security) fits if you want a cloud product.
- [Promptfoo Guardrails](https://cybersectools.com/tools/promptfoo-guardrails) fits if you need both cloud and on-premises options and you are a startup.

## Mirror Security vs Promptfoo Guardrails FAQ

Common questions when comparing Mirror Security vs Promptfoo Guardrails for LLM guardrails.

### What is the difference between Mirror Security and Promptfoo Guardrails?

**Mirror Security**: Secures AI coding assistants by controlling data access and monitoring prompts. Built by Mirror Security.

**Promptfoo Guardrails**: Adaptive LLM guardrails that self-improve via red team feedback loops. Built by Promptfoo.

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

### Who makes Mirror Security and Promptfoo Guardrails?

**Mirror Security** is made by Mirror Security. **Promptfoo Guardrails** is made by Promptfoo. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Mirror Security a good alternative to Promptfoo Guardrails?

Often, yes. Mirror Security and Promptfoo Guardrails are both LLM Guardrails products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Mirror Security vs Confident Security](https://cybersectools.com/compare/confident-security-vs-mirror-security)
- [Mirror Security vs PointGuard AI Intelligent Guardrails](https://cybersectools.com/compare/mirror-security-vs-pointguard-ai-intelligent-guardrails)
- [Mirror Security vs RealmGuard](https://cybersectools.com/compare/mirror-security-vs-realm-labs-platform)
- [Promptfoo Guardrails vs Confident Security](https://cybersectools.com/compare/confident-security-vs-promptfoo-guardrails)
- [Promptfoo Guardrails vs PointGuard AI Intelligent Guardrails](https://cybersectools.com/compare/pointguard-ai-intelligent-guardrails-vs-promptfoo-guardrails)
- [Promptfoo Guardrails vs RealmGuard](https://cybersectools.com/compare/promptfoo-guardrails-vs-realm-labs-platform)

## Alternatives to each

- [See all Mirror Security alternatives](https://cybersectools.com/alternatives/mirror-security)
- [See all Promptfoo Guardrails alternatives](https://cybersectools.com/alternatives/promptfoo-guardrails)

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Source: https://cybersectools.com/compare/mirror-security-vs-promptfoo-guardrails

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

More on Mirror Security and Promptfoo Guardrails: 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