# detections.ai Detections vs SIREN Setup Instructions: side-by-side comparison (2026)

[detections.ai Detections](https://cybersectools.com/tools/detectionsai-detections) is a commercial [detection engineering](https://cybersectools.com/categories/detection-engineering) solution by [Detections.ai](https://cybersectools.com/companies/detectionsai). [SIREN Setup Instructions](https://cybersectools.com/tools/siren-setup-instructions) is a free [detection engineering](https://cybersectools.com/categories/detection-engineering) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | detections.ai Detections | SIREN Setup Instructions |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Detection Engineering | Detection Engineering |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB |
| GitHub stars | – | 15 |
| Last commit | – | Mar 2018 |
| Company | Detections.ai | – |
| Headquarters | – | – |

### Use cases and capabilities

| | detections.ai Detections | SIREN Setup Instructions |
|---|---|---|
| Detection Rules | Yes | – |
| MITRE ATT&CK | Yes | – |
| Rule Generation | Yes | – |
| Cyber Threat Intelligence | Yes | – |
| MySQL | – | Yes |
| Linux | – | Yes |
| Snort | – | Yes |

### Core features

**detections.ai Detections**

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

**SIREN Setup Instructions**

No features listed.

## Which one fits you

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

- [detections.ai Detections](https://cybersectools.com/tools/detectionsai-detections) fits if you want a cloud product and you are a mid-market company or an enterprise.
- [SIREN Setup Instructions](https://cybersectools.com/tools/siren-setup-instructions) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.

## detections.ai Detections vs SIREN Setup Instructions FAQ

Common questions when comparing detections.ai Detections vs SIREN Setup Instructions for detection engineering.

### What is the difference between detections.ai Detections and SIREN Setup Instructions?

**detections.ai Detections**: Community platform for sharing and creating detection rules with AI, built by Detections.ai.

**SIREN Setup Instructions**: Instructions for setting up SIREN, including downloading Linux dependencies, cloning the repository, setting up virtual environment, installing pip requirements, running SIREN, setting up Snort on Pi, and MySQL setup.

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

### Who makes detections.ai Detections and SIREN Setup Instructions?

**detections.ai Detections** is made by Detections.ai. **SIREN Setup Instructions** is open-source with 15 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is detections.ai Detections a good alternative to SIREN Setup Instructions?

Often, yes. detections.ai Detections and SIREN Setup Instructions are both Detection Engineering products. Key differences: detections.ai Detections is Commercial while SIREN Setup Instructions is Free, SIREN Setup Instructions is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [detections.ai Detections vs SOC Prime Threat Detection Marketplace](https://cybersectools.com/compare/soc-prime-threat-detection-marketplace-vs-detectionsai-detections)
- [detections.ai Detections vs Sesame IT HOSHI](https://cybersectools.com/compare/detectionsai-detections-vs-sesame-it-hoshi)
- [detections.ai Detections vs Crimson7 Defensive Engineering](https://cybersectools.com/compare/crimson7-defensive-engineering-vs-detectionsai-detections)
- [SIREN Setup Instructions vs SOC Prime Threat Detection Marketplace](https://cybersectools.com/compare/siren-setup-instructions-vs-soc-prime-threat-detection-marketplace)
- [SIREN Setup Instructions vs Sesame IT HOSHI](https://cybersectools.com/compare/sesame-it-hoshi-vs-siren-setup-instructions)
- [SIREN Setup Instructions vs Crimson7 Defensive Engineering](https://cybersectools.com/compare/crimson7-defensive-engineering-vs-siren-setup-instructions)

## Alternatives to each

- [See all detections.ai Detections alternatives](https://cybersectools.com/alternatives/detectionsai-detections)
- [See all SIREN Setup Instructions alternatives](https://cybersectools.com/alternatives/siren-setup-instructions)

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Source: https://cybersectools.com/compare/detectionsai-detections-vs-siren-setup-instructions

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

More on detections.ai Detections and SIREN Setup Instructions: 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