# Onyx Platform vs Zscaler SPLX: 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). [Zscaler SPLX](https://cybersectools.com/tools/zscaler-splx) is a commercial [AI SPM](https://cybersectools.com/categories/ai-spm) solution by [SPLX](https://cybersectools.com/companies/splx). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Agentic AI Security Solutions for Business](https://cybersectools.com/shortlists/best-agentic-ai-security-solutions) picks CrowdStrike Falcon Guardian, Rubrik Agent Cloud, Silverfort AI Agent Security and 5 more.

## Side-by-side comparison

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

### Use cases and capabilities

| | Onyx Platform | Zscaler SPLX |
|---|---|---|
| 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 | – |
| Runtime Security | – | Yes |

### Core features

**Onyx Platform**

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

**Zscaler SPLX**

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.

**Zscaler SPLX**

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.
- [Zscaler SPLX](https://cybersectools.com/tools/zscaler-splx) fits if you want a cloud product.

## Onyx Platform vs Zscaler SPLX FAQ

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

### What is the difference between Onyx Platform and Zscaler SPLX?

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

**Zscaler SPLX**: End-to-end platform for securing AI systems across their entire lifecycle. Built by SPLX.

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

### Who makes Onyx Platform and Zscaler SPLX?

**Onyx Platform** is made by Onyx Security. **Zscaler SPLX** is made by SPLX. 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 Zscaler SPLX?

In part. Onyx Platform and Zscaler SPLX 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 Autonomous Security](https://cybersectools.com/compare/autonomous-security-vs-onyx-platform)
- [Onyx Platform vs Highflame Platform](https://cybersectools.com/compare/highflame-platform-vs-onyx-platform)
- [Onyx Platform vs CodeIntegrity AARM Platform](https://cybersectools.com/compare/codeintegrity-aarm-platform-vs-onyx-platform)
- [Zscaler SPLX vs Autonomous Security](https://cybersectools.com/compare/autonomous-security-vs-zscaler-splx)
- [Zscaler SPLX vs Highflame Platform](https://cybersectools.com/compare/highflame-platform-vs-zscaler-splx)
- [Zscaler SPLX vs CodeIntegrity AARM Platform](https://cybersectools.com/compare/codeintegrity-aarm-platform-vs-zscaler-splx)

## Alternatives to each

- [See all Onyx Platform alternatives](https://cybersectools.com/alternatives/onyx-platform)
- [See all Zscaler SPLX alternatives](https://cybersectools.com/alternatives/zscaler-splx)

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

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 Zscaler SPLX: 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