# TrojAI Defend vs Witness Protect: side-by-side comparison (2026)

[TrojAI Defend](https://cybersectools.com/tools/trojai-defend) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [A10 Networks](https://cybersectools.com/companies/a10-networks). [Witness Protect](https://cybersectools.com/tools/witness-protect) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [WitnessAI](https://cybersectools.com/companies/witnessai). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | TrojAI Defend | Witness Protect |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | LLM Guardrails |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | A10 Networks | WitnessAI |
| Headquarters | – | – |

### Use cases and capabilities

| | TrojAI Defend | Witness Protect |
|---|---|---|
| Content Filtering | Yes | – |
| Browser Security | Yes | – |
| AI Firewall | Yes | Yes |
| PII | – | Yes |
| Tokenization | – | Yes |

### Core features

**TrojAI Defend**

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

**Witness Protect**

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

### Integrations

**TrojAI Defend**

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

**Witness Protect**

2 integrations 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.

- [TrojAI Defend](https://cybersectools.com/tools/trojai-defend) fits if you are a small business.

## TrojAI Defend vs Witness Protect FAQ

Common questions when comparing TrojAI Defend vs Witness Protect for LLM guardrails.

### What is the difference between TrojAI Defend and Witness Protect?

**TrojAI Defend**: AI firewall for runtime protection of AI models, applications, and agents. Built by A10 Networks.

**Witness Protect**: Enterprise AI firewall protecting AI agents, models, and chatbots from attacks. Built by WitnessAI.

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

### Who makes TrojAI Defend and Witness Protect?

**TrojAI Defend** is made by A10 Networks. **Witness Protect** is made by WitnessAI. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is TrojAI Defend a good alternative to Witness Protect?

Often, yes. TrojAI Defend and Witness Protect are both LLM Guardrails products, and both cover AI Firewall. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [TrojAI Defend vs RealmGuard](https://cybersectools.com/compare/realm-labs-platform-vs-trojai-defend)
- [TrojAI Defend vs Aiceberg Risk Signals Library](https://cybersectools.com/compare/aiceberg-risk-signals-library-vs-trojai-defend)
- [TrojAI Defend vs Akamai Firewall for AI](https://cybersectools.com/compare/akamai-firewall-for-ai-vs-trojai-defend)
- [Witness Protect vs RealmGuard](https://cybersectools.com/compare/realm-labs-platform-vs-witness-protect)
- [Witness Protect vs Aiceberg Risk Signals Library](https://cybersectools.com/compare/aiceberg-risk-signals-library-vs-witness-protect)
- [Witness Protect vs Akamai Firewall for AI](https://cybersectools.com/compare/akamai-firewall-for-ai-vs-witness-protect)

## Alternatives to each

- [See all TrojAI Defend alternatives](https://cybersectools.com/alternatives/trojai-defend)
- [See all Witness Protect alternatives](https://cybersectools.com/alternatives/witness-protect)

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Source: https://cybersectools.com/compare/trojai-defend-vs-witness-protect

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More on TrojAI Defend and Witness Protect: 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