# OT and IoT security for enterprise buyers: what AI models recommend, October 2026

IT AI Recommendation Index, October 2026 Edition. Asked as "OT security platform" and as "industrial and IoT device security tool", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Added to the October 2026 Edition on October 4, 2026; its answers are read by the distilled judge (ai-indexes-judge-qwen3-14b-run3), not the claude-opus-5 judge of the earlier categories. Page: https://it-ai-index.com/security/ot-and-iot-security/enterprise/

**Standing:** Claroty xDome leads with 35% of first choices; verdict contested. 54 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Claroty xDome | 35% | 8% | 63 |
| 2 | Nozomi Networks Guardian | 22% | 9% | 57 |
| 3 | Microsoft Defender for IoT | 15% | 12% | 48 |
| 4 | Dragos Platform | 9% | 11% | 53 |
| 5 | Armis Centrix | 6% | 18% | 44 |
| 6 | Fortinet OT Security Platform | 4% | 12% | 26 |
| 7 | Forescout Vistaro Platform | 2% | 10% | 20 |
| 8 | Tenable OT Security | 0% | 12% | 25 |
| 9 | Palo Alto Networks | 0% | 8% | 12 |

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

- Claude Haiku 4.5: Nozomi Networks Guardian; alternatives Claroty xDome, Dragos Platform, Microsoft Defender for IoT
- GPT-5.4 mini: Fortinet OT Security Platform; alternatives Claroty xDome, Dragos Platform, Nozomi Networks Guardian
- Gemini 3.5 Flash: Dragos Platform; alternatives Armis Centrix, Claroty xDome, Fortinet OT Security Platform, Microsoft Defender for IoT
- Perplexity Sonar: Claroty xDome; alternatives Dragos Platform
- Grok 4.1 Fast: Claroty xDome; alternatives Dragos Platform, Nozomi Networks Guardian, Palo Alto Networks
- Mistral Small: Claroty xDome, Dragos Platform, Nozomi Networks Guardian
- DeepSeek V4 Flash: Claroty xDome, Dragos Platform; alternatives Nozomi Networks Guardian
- Llama 4 Maverick: Claroty xDome; alternatives Darktrace, Forcepoint
- Qwen 3.7 Flash: Nozomi Networks Guardian; alternatives Claroty xDome, FireEye, IBM Verify, Tenable OT Security
- Kimi K2: Claroty xDome, Nozomi Networks Guardian; alternatives Dragos Platform, Fortinet OT Security Platform, Palo Alto Networks
- GLM 4.7 FlashX: Claroty xDome, Nozomi Networks Guardian; alternatives Dragos Platform, Fortinet OT Security Platform, Honeywell Forge, Kaspersky ICS
- MiniMax M2.5: Claroty xDome; alternatives Dragos Platform, Nozomi Networks Guardian
- GPT-6 Luna: Claroty xDome; alternatives Dragos Platform, Nozomi Networks Guardian
- Muse Glimmer 30B: Nozomi Networks Guardian; alternatives Armis Centrix, Claroty xDome, Dragos Platform

## Sources the answers cite

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

- networkintelligence.ai: 41 answers, 41 citations
- netwitness.com: 39 answers, 44 citations
- elisity.com: 30 answers, 32 citations
- opsiocloud.com: 29 answers, 29 citations
- fortinet.com: 24 answers, 34 citations
- reliamag.com: 24 answers, 24 citations
- gartner.com: 21 answers, 31 citations
- us.fitgap.com: 21 answers, 23 citations

Pages named in the most answers:

- https://networkintelligence.ai/blogs/best-ot-security-services (41 answers)
- https://netwitness.com/blog/top-operational-technology-security-providers (37 answers)
- https://elisity.com/blog/leading-vendors-securing-ot-industrial-control-systems (30 answers)
- https://opsiocloud.com/blogs/ot-security-vendor-selection-guide (29 answers)
- https://reliamag.com/guides/best-industrial-cybersecurity-platforms-ot-ics-security-2026 (24 answers)
- https://ciopages.com/buyer-guides/ot-ics-security (19 answers)
- https://guideflow.com/blog/iot-security-solutions (16 answers)
- https://gartner.com/reviews/market/iot-security (15 answers)
- https://peerspot.com/categories/operational-technology-ot-security (15 answers)
- https://tech-insider.org/claroty-vs-dragos-vs-nozomi-networks-2026 (15 answers)

## Warned against

- Armis Centrix: 8 of 44 labels negative. "Less Predictable Options (Avoid for your use case)" (GLM 4.7 FlashX, budget prompt)
- Microsoft Defender for IoT: 6 of 48 labels negative. "Avoid for a new deployment. If you still use it, treat migration as a priority." (GPT-6 Luna, negative prompt)
- Dragos Platform: 6 of 53 labels negative. "Less Predictable Options (Avoid for your use case)" (GLM 4.7 FlashX, budget prompt)
- Claroty xDome: 5 of 63 labels negative. "Less Predictable Options (Avoid for your use case)" (GLM 4.7 FlashX, budget prompt)

## Record

- Method: https://it-ai-index.com/methodology/
- Raw judge labels and full responses: https://it-ai-index.com/data/
- License: CC BY 4.0. Cite as IT AI Recommendation Index, October 2026 Edition, it-ai-index.com.