Best SIEM Software · 2026
Graylog Security vs 
Sumo Logic Graylog Security vs Sumo Logic: on our data-weighted scoring, Graylog Security edges ahead (8.1 vs 8.1/10). Graylog Security starts at $18000/yr (Security, 10 GB/day) and is best for teams wanting siem-grade threat detection without splunk-level cost or complexity; Sumo Logic starts at Free tier available and is best for cloud-native teams wanting log analytics + cloud siem with a credit-based consumption model. Choose Graylog Security for the stronger overall track record; consider Sumo Logic if its pricing model or fit matches your environment better. Side-by-side table below.
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Six criteria, each scored 0–10 on the same scale from real review data, public pricing and feature coverage. See our methodology →
| Criterion | Graylog Security | Sumo Logic |
|---|---|---|
| Editorial | 8.1 | 8.1 |
| User reviews | 8.8 | 8.6 |
| Adoption | 5.5 | 6.7 |
| Affordability | 9.5 | 9.5 |
| Feature breadth | 6.0 | 6.0 |
| Ease of trial | 10.0 | 10.0 |
| Graylog Security | Sumo Logic | |
|---|---|---|
| Starting price | $18000/yr (Security, 10 GB/day) | Free tier available |
| Pricing model | per gb | quote |
| Free trial / tier | Free tier + 14 days | Free tier + 30 days |
| Best for | Teams wanting SIEM-grade threat detection without Splunk-level cost or complexity | Cloud-native teams wanting log analytics + Cloud SIEM with a credit-based consumption model |
| Deployment | Cloud + self-host | Cloud |
| G2 rating | 4.4/5 (116) | 4.3/5 (338) |
| Capterra rating | — | — |
| Our score | 8.1 | 8.1 |
You need teams wanting siem-grade threat detection without splunk-level cost or complexity.
You need cloud-native teams wanting log analytics + cloud siem with a credit-based consumption model.
Graylog Security bills on a per gb model from $18000/yr (Security, 10 GB/day) (free tier available), while Sumo Logic uses a quote model from Free tier available (free tier available). Because the models differ, the cheaper option flips depending on your fleet size — model both at your seat/endpoint count.
Graylog Security ships 6 headline capabilities (Free open-source tier, SIEM with MITRE ATT&CK mapping, Sigma rules + UEBA + risk scoring, Pipeline-based enrichment) and deploys Cloud + self-host. Sumo Logic ships 6 (Cloud-native log analytics, Cloud SIEM + Cloud SOAR, Credit-based flexible consumption, Real-time dashboards + alerting), deploying Cloud.
Graylog Security holds 4.4/5 (~116 G2 reviews); Sumo Logic holds 4.3/5 (~338 G2 reviews). On our data-weighted score, Graylog Security edges ahead (8.1 vs 8.1/10). Pick Sumo Logic instead when cloud-native teams wanting log analytics + cloud siem with a credit-based consumption model. See Graylog Security alternatives or Sumo Logic alternatives.