# Nozomi Networks Guardian vs Fortinet OT Security Platform: which do AI models recommend for ot/iot security, October 2026

IT AI Recommendation Index, October 2026 Edition, OT and IoT security. One of fourteen models named Nozomi Networks Guardian first on the direct prompt; two named Fortinet OT Security Platform. Page: https://it-ai-index.com/security/ot-and-iot-security/nozomi-networks-guardian-vs-fortinet-ot-security-platform/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Nozomi Networks Guardian | 10% | #3 of 9 | 13% | 46 | 13 of 14 |
| Fortinet OT Security Platform | 8% | #4 of 9 | 4% | 23 | 11 of 14 |

## The direct prompt, model by model

- Claude Haiku 4.5: nozomi networks guardian first (first choices: Claroty xDome, Nozomi Networks Guardian) (alternatives: Dragos Platform, Fortinet OT Security Platform, Palo Alto Networks, Tenable OT Security)
- Gemini 3.5 Flash: fortinet ot security platform first (first choices: Fortinet OT Security Platform, Microsoft Defender for IoT) (alternatives: Claroty xDome, Nozomi Networks Guardian)
- GLM 4.7 FlashX: fortinet ot security platform first (first choices: Fortinet OT Security Platform) (alternatives: Dragos Platform, Nozomi Networks Guardian)
- Perplexity Sonar: neither first, one named (first choices: Radiflow360) (alternatives: Claroty xDome, Dragos Platform, Fortinet OT Security Platform, Palo Alto Networks)
- Grok 4.1 Fast: neither first, one named (first choices: Claroty xDome) (alternatives: Dragos Platform, Fortinet OT Security Platform, Nozomi Networks Guardian, Palo Alto Networks)
- Mistral Small: neither first, one named (first choices: Dragos Platform) (alternatives: Claroty xDome, Nozomi Networks Guardian)
- DeepSeek V4 Flash: neither first, one named (first choices: Claroty xDome) (alternatives: Microsoft Defender for IoT, Nozomi Networks Guardian, Palo Alto Networks Industrial OT Security)
- Qwen 3.7 Flash: neither first, one named (first choices: Industrial AI) (alternatives: Claroty xDome, Nozomi Networks Guardian, Tenable.io OT)
- Kimi K2: neither first, one named (first choices: Armis Centrix, Claroty xDome) (alternatives: Fortinet OT Security Platform, Microsoft Defender for IoT, Nozomi Networks Guardian)
- MiniMax M2.5: neither first, one named (first choices: Radiflow360) (alternatives: Armis Centrix, Claroty xDome, Nozomi Networks Guardian, Tenable OT Security)
- Muse Glimmer 30B: neither first, one named (first choices: Radiflow360) (alternatives: Claroty xDome, Nozomi Networks Guardian)
- GPT-5.4 mini: neither named (first choices: Claroty xDome) (alternatives: Armis Centrix, Dragos Platform)
- Llama 4 Maverick: neither named (first choices: Palo Alto Networks) (alternatives: Claroty xDome, Forcepoint)
- GPT-6 Luna: neither named (first choices: Nozomi Networks Vantage) (alternatives: Claroty xDome, Dragos Platform)

## What the models said about Nozomi Networks Guardian

- "Avoid if budget is tight: Nozomi Networks" (Perplexity Sonar, budget prompt, hard negative)
- "The presence of recent high-severity privilege and authentication issues does not mean the product should be avoided outright, it means deployments must be kept current" (Muse Glimmer 30B, negative prompt, soft negative)
- "frequently cost six figures and require dedicated Security Operations Center (SOC) teams—usually out of reach" (Gemini 3.5 Flash, budget prompt, soft negative)
- "Offers the broadest range of deployment form factors and has the most extensive OT and IoT device coverage by asset type count and the strongest scalability" (Claude Haiku 4.5, direct prompt, first choice)
- "Claroty and Nozomi are widely regarded as market leaders for broad asset visibility and risk posture." (Gemini 3.5 Flash, scale prompt, first choice)
- "I'd recommend Nozomi Networks (specifically their Guardian platform with Vantage SaaS management)" (Grok 4.1 Fast, paraphrase prompt, first choice)

## What the models said about Fortinet OT Security Platform

- "may be better evaluated as infrastructure/security-control platforms than as best-in-class OT-native monitors" (Perplexity Sonar, negative prompt, soft negative)
- "Microsoft Defender for IoT (if you are a Microsoft shop) or Fortinet (if you use their network hardware) are the most successful starting points" (Gemini 3.5 Flash, direct prompt, first choice)
- "Fortinet offers a cost-effective entry point with OT appliances starting at $2,200-$4,000" (Claude Haiku 4.5, budget prompt, first choice)
- "Start with Fortinet for network-based protection and segmentation" (GLM 4.7 FlashX, direct prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.