# Operant AI AI Gatekeeper vs Vijil Dome: side-by-side comparison (2026)

[Operant AI AI Gatekeeper](https://cybersectools.com/tools/operant-ai-ai-gatekeeper) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Operant AI](https://cybersectools.com/companies/operant-ai). [Vijil Dome](https://cybersectools.com/tools/vijil-dome) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Vijil](https://cybersectools.com/companies/vijil). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Operant AI AI Gatekeeper | Vijil Dome |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | LLM Guardrails |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Operant AI | Vijil |
| Headquarters | – | – |

### Use cases and capabilities

| | Operant AI AI Gatekeeper | Vijil Dome |
|---|---|---|
| Cloud Native | Yes | – |
| Kubernetes | Yes | – |
| LLM Guardrails | – | Yes |
| LLM Security | – | Yes |
| Prompt Injection | – | Yes |
| Agentic AI Security | – | Yes |
| AI Governance | – | Yes |
| PII | – | Yes |
| GenAI Security | – | Yes |
| Content Filtering | – | Yes |
| Policy | – | Yes |
| Pattern Matching | – | Yes |

### Core features

**Operant AI AI Gatekeeper**

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

**Vijil Dome**

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

### Integrations

**Operant AI AI Gatekeeper**

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

**Vijil Dome**

8 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.

- [Operant AI AI Gatekeeper](https://cybersectools.com/tools/operant-ai-ai-gatekeeper) fits if you want a cloud product.
- [Vijil Dome](https://cybersectools.com/tools/vijil-dome) fits if you need both cloud and on-premises options and you are a startup or a small business.

## Operant AI AI Gatekeeper vs Vijil Dome FAQ

Common questions when comparing Operant AI AI Gatekeeper vs Vijil Dome for LLM guardrails.

### What is the difference between Operant AI AI Gatekeeper and Vijil Dome?

**Operant AI AI Gatekeeper**: Runtime AI security platform protecting GenAI apps from models to APIs. Built by Operant AI.

**Vijil Dome**: Runtime LLM guardrails blocking prompt injections, PII leakage & policy violations. Built by Vijil.

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

### Who makes Operant AI AI Gatekeeper and Vijil Dome?

**Operant AI AI Gatekeeper** is made by Operant AI. **Vijil Dome** is made by Vijil. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Operant AI AI Gatekeeper a good alternative to Vijil Dome?

Often, yes. Operant AI AI Gatekeeper and Vijil Dome are both LLM Guardrails products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Operant AI AI Gatekeeper vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/operant-ai-ai-gatekeeper-vs-portkey-guardrails-for-bedrock)
- [Operant AI AI Gatekeeper vs ThirdLaw AI Control Layer](https://cybersectools.com/compare/operant-ai-ai-gatekeeper-vs-thirdlaw-ai-control-layer)
- [Operant AI AI Gatekeeper vs AI Model Guardrails](https://cybersectools.com/compare/ai-model-guardrails-vs-operant-ai-ai-gatekeeper)
- [Vijil Dome vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/portkey-guardrails-for-bedrock-vs-vijil-dome)
- [Vijil Dome vs ThirdLaw AI Control Layer](https://cybersectools.com/compare/thirdlaw-ai-control-layer-vs-vijil-dome)
- [Vijil Dome vs AI Model Guardrails](https://cybersectools.com/compare/ai-model-guardrails-vs-vijil-dome)

## Alternatives to each

- [See all Operant AI AI Gatekeeper alternatives](https://cybersectools.com/alternatives/operant-ai-ai-gatekeeper)
- [See all Vijil Dome alternatives](https://cybersectools.com/alternatives/vijil-dome)

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Source: https://cybersectools.com/compare/operant-ai-ai-gatekeeper-vs-vijil-dome

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

More on Operant AI AI Gatekeeper and Vijil Dome: 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