# Onyx Platform vs RunSybil: side-by-side comparison (2026)

[Onyx Platform](https://cybersectools.com/tools/onyx-platform) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Onyx Security](https://cybersectools.com/companies/onyx-security). [RunSybil](https://cybersectools.com/tools/runsybil) is a commercial [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution by [RunSybil](https://cybersectools.com/companies/runsybil). Features, integrations, deployment and the company behind each one, side by side.

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## Side-by-side comparison

| | Onyx Platform | RunSybil |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Agentic AI Security | Penetration Testing |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Onyx Security | RunSybil |
| Headquarters | – | – |

### Use cases and capabilities

| | Onyx Platform | RunSybil |
|---|---|---|
| Agentic AI Security | Yes | – |
| AI Governance | Yes | – |
| AI Observability | Yes | – |
| AI SPM | Yes | – |
| LLM Guardrails | Yes | – |
| LLM Security | Yes | – |
| MCP Security | Yes | – |
| Prompt Injection | Yes | – |
| Shadow AI | Yes | – |
| GenAI Security | Yes | – |
| AI Pentesting | – | Yes |
| Attack Paths | – | Yes |
| Continuous Testing | – | Yes |
| Vulnerability Prioritization | – | Yes |
| Reconnaissance | – | Yes |
| DAST | – | Yes |
| Red Team | – | Yes |
| Security Scanning | – | Yes |
| Vulnerability | – | Yes |
| Cloud Native | – | Yes |

### Core features

**Onyx Platform**

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

**RunSybil**

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

### Integrations

**Onyx Platform**

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

**RunSybil**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Onyx Platform](https://cybersectools.com/tools/onyx-platform) fits if you need both cloud and on-premises options.
- [RunSybil](https://cybersectools.com/tools/runsybil) fits if you want a cloud product and you are a small business.

## Onyx Platform vs RunSybil FAQ

Common questions when comparing Onyx Platform vs RunSybil for agentic AI security.

### What is the difference between Onyx Platform and RunSybil?

**Onyx Platform**: AI control plane for enterprise AI agent security, governance, and observability. Built by Onyx Security.

**RunSybil**: AI-driven continuous attack surface assessment and validation platform. Built by RunSybil.

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

### Who makes Onyx Platform and RunSybil?

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

### Is Onyx Platform a good alternative to RunSybil?

In part. Onyx Platform and RunSybil are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Onyx Platform vs Evoke Security](https://cybersectools.com/compare/evoke-security-vs-onyx-platform)
- [Onyx Platform vs Oryo](https://cybersectools.com/compare/onyx-platform-vs-oryo)
- [Onyx Platform vs HikmaAI](https://cybersectools.com/compare/hikmaai-vs-onyx-platform)
- [RunSybil vs Evoke Security](https://cybersectools.com/compare/evoke-security-vs-runsybil)
- [RunSybil vs Oryo](https://cybersectools.com/compare/oryo-vs-runsybil)
- [RunSybil vs HikmaAI](https://cybersectools.com/compare/hikmaai-vs-runsybil)

## Alternatives to each

- [See all Onyx Platform alternatives](https://cybersectools.com/alternatives/onyx-platform)
- [See all RunSybil alternatives](https://cybersectools.com/alternatives/runsybil)

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Source: https://cybersectools.com/compare/onyx-platform-vs-runsybil

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

More on Onyx Platform and RunSybil: 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