# Onyx Platform vs Starseer Platform: 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). [Starseer Platform](https://cybersectools.com/tools/starseer-platform) is a commercial [AI model security](https://cybersectools.com/categories/ai-model-security) solution by [Starseer](https://cybersectools.com/companies/starseer). Features, integrations, deployment and the company behind each one, side by side.

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## Side-by-side comparison

| | Onyx Platform | Starseer Platform |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Agentic AI Security | AI Model Security |
| Verified | No | No |
| Deployment type | Hybrid | Hybrid |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Onyx Security | Starseer |
| Headquarters | – | – |

### Use cases and capabilities

| | Onyx Platform | Starseer Platform |
|---|---|---|
| Agentic AI Security | Yes | Yes |
| AI Governance | Yes | Yes |
| AI Observability | Yes | – |
| AI SPM | Yes | – |
| LLM Guardrails | Yes | – |
| LLM Security | Yes | Yes |
| MCP Security | Yes | – |
| Prompt Injection | Yes | Yes |
| Shadow AI | Yes | – |
| GenAI Security | Yes | – |
| AI Firewall | – | Yes |
| AI Gateway | – | Yes |
| Adversarial ML | – | Yes |
| MITRE ATT&CK | – | Yes |
| Anomaly Detection | – | Yes |
| Generative AI | – | Yes |

### Core features

**Onyx Platform**

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

**Starseer Platform**

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.

**Starseer Platform**

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

## Onyx Platform vs Starseer Platform FAQ

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

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

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

**Starseer Platform**: Scans, monitors, and enforces policy on AI models. Built by Starseer.

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

### Who makes Onyx Platform and Starseer Platform?

**Onyx Platform** is made by Onyx Security. **Starseer Platform** is made by Starseer. 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 Starseer Platform?

In part. Onyx Platform and Starseer Platform are not in the same category on CybersecTools. Both cover LLM Security, Prompt Injection, AI Governance. 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 First Recon AI Agent Management](https://cybersectools.com/compare/first-recon-ai-agent-management-vs-onyx-platform)
- [Onyx Platform vs General Analysis AIDR](https://cybersectools.com/compare/general-analysis-aidr-vs-onyx-platform)
- [Starseer Platform vs Evoke Security](https://cybersectools.com/compare/evoke-security-vs-starseer-platform)
- [Starseer Platform vs First Recon AI Agent Management](https://cybersectools.com/compare/first-recon-ai-agent-management-vs-starseer-platform)
- [Starseer Platform vs General Analysis AIDR](https://cybersectools.com/compare/general-analysis-aidr-vs-starseer-platform)

## Alternatives to each

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

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

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More on Onyx Platform and Starseer Platform: 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