# SIEM platforms for enterprise buyers: what AI models recommend, October 2026

Gane Index, October 2026 Edition. Asked as "SIEM platform" and as "security information and event management tool", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Page: https://www.gane.ai/index/it/security/siem-platforms/2026-10/enterprise

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/it/security/siem-platforms/enterprise/index.md

**Standing:** Microsoft Sentinel leads with 41% of first choices; verdict clear leader. 54 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Microsoft Sentinel](https://www.gane.ai/index/it/vendors/microsoft-sentinel/index.md) | 41% | 17% | 72 |
| 2 | [Splunk Enterprise Security](https://www.gane.ai/index/it/vendors/splunk-enterprise-security/index.md) | 26% | 24% | 68 |
| 3 | [Google Security Operations](https://www.gane.ai/index/it/vendors/google-security-operations/index.md) | 9% | 0% | 30 |
| 4 | [Exabeam](https://www.gane.ai/index/it/vendors/exabeam/index.md) | 6% | 10% | 41 |
| 5 | [IBM QRadar](https://www.gane.ai/index/it/vendors/ibm-qradar/index.md) | 6% | 35% | 55 |
| 6 | [Securonix Unified Defense SIEM](https://www.gane.ai/index/it/vendors/securonix-unified-defense-siem/index.md) | 2% | 17% | 30 |
| 7 | [Rapid7 InsightIDR](https://www.gane.ai/index/it/vendors/rapid7-insightidr/index.md) | 2% | 20% | 15 |
| 12 | [LogRhythm](https://www.gane.ai/index/it/vendors/logrhythm/index.md) | 2% | 43% | 21 |
| 13 | [Elastic Security](https://www.gane.ai/index/it/vendors/elastic-security/index.md) | 0% | 11% | 38 |
| 14 | [Palo Alto Networks Cortex XSIAM](https://www.gane.ai/index/it/vendors/palo-alto-networks-cortex-xsiam/index.md) | 0% | 4% | 25 |
| 15 | [CrowdStrike Falcon Next-Gen SIEM](https://www.gane.ai/index/it/vendors/crowdstrike-falcon-next-gen-siem/index.md) | 0% | 8% | 13 |
| 20 | [Sumo Logic Cloud SIEM](https://www.gane.ai/index/it/vendors/sumo-logic-cloud-siem/index.md) | 0% | 21% | 14 |

Rank is by share of first choices among all 61 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Microsoft Sentinel, Splunk Enterprise Security; alternatives Elastic Security, IBM QRadar
- GPT-5.4 mini: Microsoft Sentinel; alternatives Google Security Operations, IBM QRadar, Splunk Enterprise Security
- Gemini 3.5 Flash: Microsoft Sentinel; alternatives CrowdStrike Falcon Next-Gen SIEM, Google Security Operations, Palo Alto Networks Cortex XSIAM, Splunk Enterprise Security
- Perplexity Sonar: Microsoft Sentinel; alternatives IBM QRadar, Splunk Enterprise Security
- Grok 4.20: Microsoft Sentinel; alternatives Splunk Enterprise Security
- Mistral Small: Microsoft Sentinel, Splunk Enterprise Security; alternatives Exabeam, IBM QRadar
- DeepSeek V4 Flash: Splunk Enterprise Security; alternatives Google Security Operations, IBM QRadar, Microsoft Sentinel
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Microsoft Sentinel, Splunk Enterprise Security; alternatives Elastic Security, IBM QRadar
- Kimi K2: Microsoft Sentinel, Splunk Enterprise Security; alternatives CrowdStrike Falcon Next-Gen SIEM, Elastic Security, Palo Alto Networks Cortex XSIAM
- GLM 4.7 FlashX: Microsoft Sentinel; alternatives Exabeam, IBM QRadar, Splunk Enterprise Security
- MiniMax M2.5: IBM QRadar, Microsoft Sentinel; alternatives Exabeam, Splunk Enterprise Security, Sumo Logic Cloud
- GPT-6 Luna: Microsoft Sentinel; alternatives Elastic Security, Google Security Operations, Splunk Enterprise Security
- Muse Glimmer 30B: Splunk Enterprise Security; alternatives Microsoft Sentinel, Palo Alto Networks Cortex XSIAM

## Sources the answers cite

76 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- underdefense.com: 52 answers, 60 citations
- exabeam.com: 32 answers, 49 citations
- paloaltonetworks.com: 32 answers, 37 citations
- manageengine.com: 25 answers, 28 citations
- splunk.com: 24 answers, 42 citations
- panther.com: 22 answers, 24 citations
- netwitness.com: 20 answers, 21 citations
- expertinsights.com: 18 answers, 18 citations

Pages named in the most answers:

- https://underdefense.com/blog/siem-solutions-comparison (44 answers)
- https://paloaltonetworks.com/cyberpedia/siem-tools-comparison (27 answers)
- https://panther.com/blog/best-siem-tools (21 answers)
- https://manageengine.com/log-management/top-siem-tools.html (20 answers)
- https://netwitness.com/blog/top-siem-solutions-for-enterprises (20 answers)
- https://expertinsights.com/security-operations/the-top-siem-solutions (18 answers)
- https://kaseya.com/blog/best-siem-tools (18 answers)
- https://exabeam.com/explainers/siem-tools/siem-buyers-guide (17 answers)
- https://puppygraph.com/learn/enterprise-siem-tools (16 answers)
- https://techrepublic.com/article/siem-tools (13 answers)

## Warned against

- IBM QRadar: 19 of 55 labels negative. "IBM has shifted focus away from on-prem QRadar; ... long-term viability is limited, and the licensing model can become expensive and hard to scale." (GLM 4.7 FlashX, negative prompt)
- Microsoft Sentinel: 12 of 72 labels negative. "Platforms to Avoid for Predictability - Splunk ES, Microsoft Sentinel, Sumo Logic, Elastic: Primarily per-GB" (Grok 4.20, budget prompt)
- Splunk Enterprise Security: 16 of 68 labels negative. "Platforms to Avoid for Predictability
- Splunk ES, Microsoft Sentinel, Sumo Logic, Elastic: Primarily per-GB" (Grok 4.20, budget prompt)
- LogRhythm: 9 of 21 labels negative. "Frequently criticized for lacking adequate community support, poor documentation, and scalability issues, making it a risky choice for large, complex environments." (Mistral Small, negative prompt)

## Movement since September 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: Microsoft Sentinel at 42%.

- Palo Alto Networks Cortex XSIAM: 15% to 0%, −15. Cleared the floor by 4 points · rank 3 → 11 of 51.
- Microsoft Sentinel: 30% to 42%, +12. Cleared the floor by 1 point · rank 1 of 51, unchanged.
- Rapid7 InsightIDR: 11% to 2%, −9. Inside the floor by 2 points · rank 4 → 7 of 51.
- Google Security Operations: 6% to 11%, +5. Inside the floor by 6 points · rank 5 → 3 of 51.
- Exabeam: 2% to 7%, +5. Inside the floor by 6 points · rank 7 → 4 of 51.
- IBM QRadar: 2% to 4%, +2. Inside the floor by 9 points · rank 8 → 5 of 51.
- LogRhythm: 0% to 2%, +2. Inside the floor by 9 points · rank 45 → 9 of 51.
- Splunk Enterprise Security: 28% to 27%, −1. Inside the floor by 10 points · rank 2 of 51, unchanged.
- Securonix Unified Defense SIEM: 2% to 2%, ±0. Inside the floor by 11 points · rank 9 → 6 of 51.
- Elastic Security: 0% to 0%, ±0. Inside the floor by 11 points · rank 10 of 51, unchanged.
- CrowdStrike Falcon Next-Gen SIEM: 0% to 0%, ±0. Inside the floor by 11 points · rank 11 → 12 of 51.
- Sumo Logic Cloud SIEM: 0% to 0%, ±0. Inside the floor by 11 points · rank 12 → 17 of 51.

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, October 2026 Edition, www.gane.ai/index/it.