Are there any open source alternatives to Microsoft Sentinel SIEM implementation that won't blow our tiny engineering budget out of the water?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Are there any open source alternatives to Microsoft Sentinel SIEM implementation that won't blow our tiny engineering budget out of the water?
4 real searches · 1 real-search pass
best open source SIEM alternatives Wazuh Security Onion OpenSearch Security Analytics 2026 features licensingGoogle ↗
OBSERVED
Wazuh pricing free open source SIEM XDR official documentationGoogle ↗
OBSERVED
Security Onion free open source features official documentationGoogle ↗
OBSERVED
OpenSearch Security Analytics open source SIEM official documentationGoogle ↗
OBSERVED
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
Classifying 4 queries…
Searches and sources
ChatGPT4 real searches · gpt-6
best open source SIEM alternatives Wazuh Security Onion OpenSearch Security Analytics 2026 features licensing Google ↗
Wazuh pricing free open source SIEM XDR official documentation Google ↗
Security Onion free open source features official documentation Google ↗
OpenSearch Security Analytics open source SIEM official documentation Google ↗
- GitHub - wazuh/wazuh-documentation: Wazuh · github.com
- Installation guide · documentation.wazuh.com
- Getting started with Wazuh · documentation.wazuh.com
- Wazuh · wazuh.com
- The (Definitive) List of Open Source SIEM Platforms Worth Evaluating · filigran.io
- Open Source SIEM Tools: 7 Best Compared, Licenses Checked · utmstack.com
- Security Onion · securityonion.net
- About Security Analytics · docs.opensearch.org
- GitHub - opensearch-project/security-analytics: Security Analytics enables users for detecting security threats on their security event log data. It will also allow them to modify/tailor the pre-packaged solution. · github.com
- OpenSearch · opensearch.org
- Graylog · graylog.org
- Best SIEM Alternatives in 2026: Open Source and Cloud Options · securecoding.com
- Open Source SIEM in 2026: An Honest Comparison of Wazuh, Elastic, Security Onion and Graylog · threatclaw.io
- Elastic Security · elastic.co
Queries
4 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
best open source SIEM alternatives Wazuh Security Onion OpenSearch Security Analytics 2026 features licensing OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
Wazuh pricing free open source SIEM XDR official documentation OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
Security Onion free open source features official documentation OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
OpenSearch Security Analytics open source SIEM official documentation OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 |