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

[DeepKeep](https://cybersectools.com/tools/deepkeep) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [DeepKeep](https://cybersectools.com/companies/deepkeep). [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

| | DeepKeep | 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 | DeepKeep | Promptfoo |
| Headquarters | – | – |

### Use cases and capabilities

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

### Core features

**DeepKeep**

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.

- [DeepKeep](https://cybersectools.com/tools/deepkeep) 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.

## DeepKeep vs Promptfoo Guardrails FAQ

Common questions when comparing DeepKeep vs Promptfoo Guardrails for LLM guardrails.

### What is the difference between DeepKeep and Promptfoo Guardrails?

**DeepKeep**: Centralized governance and security platform for employee LLM interactions. Built by DeepKeep.

**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 DeepKeep and Promptfoo Guardrails?

**DeepKeep** is made by DeepKeep founded in 2021-01-01T00:00:00.000Z. **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 DeepKeep a good alternative to Promptfoo Guardrails?

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

## Related comparisons

- [DeepKeep vs Confident Security](https://cybersectools.com/compare/confident-security-vs-deepkeep)
- [DeepKeep vs First Recon AI Firewall](https://cybersectools.com/compare/deepkeep-vs-first-recon-ai-firewall)
- [DeepKeep vs PointGuard AI Intelligent Guardrails](https://cybersectools.com/compare/deepkeep-vs-pointguard-ai-intelligent-guardrails)
- [Promptfoo Guardrails vs Confident Security](https://cybersectools.com/compare/confident-security-vs-promptfoo-guardrails)
- [Promptfoo Guardrails vs First Recon AI Firewall](https://cybersectools.com/compare/first-recon-ai-firewall-vs-promptfoo-guardrails)
- [Promptfoo Guardrails vs PointGuard AI Intelligent Guardrails](https://cybersectools.com/compare/pointguard-ai-intelligent-guardrails-vs-promptfoo-guardrails)

## Alternatives to each

- [See all DeepKeep alternatives](https://cybersectools.com/alternatives/deepkeep)
- [See all Promptfoo Guardrails alternatives](https://cybersectools.com/alternatives/promptfoo-guardrails)

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Source: https://cybersectools.com/compare/deepkeep-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/deepkeep.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on DeepKeep 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