OT and IoT security · October 2026 Edition
Armis Centrix vs Tenable OT Security
One of fourteen models named Armis Centrix first on the direct prompt; zero named Tenable OT Security. Armis Centrix was named by fourteen of the fourteen models and Tenable OT Security by eleven and Armis Centrix carries 31 labels and Tenable OT Security 27, so the shares are not directly comparable.
Named in two categories this edition.
Named in one category this edition.
First-choice share6%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate13%15%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#5#6A position in a field of 9; printed, not drawn.
Labels3127A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Armis Centrix reading right to left. Rank and label count are printed, not drawn.Claroty xDome was named alongside these two in thirteen of the fourteen direct answers. Microsoft Defender for IoT vs Armis Centrix · Microsoft Defender for IoT vs Tenable OT Security · Claroty xDome vs Armis Centrix
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; every quote names the model and the prompt it came from. Both figures come from the OT and IoT security page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Armis CentrixFirst choices, of fourteen modelsTenable OT Security
Direct10
Paraphrase20
Comparative00
Budget-constrained021 against Tenable OT Security
Scale-constrained00
Negative104 against Armis Centrix · 3 against Tenable OT Security
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Across every category in the October 2026 Edition, Armis Centrix and Tenable OT Security were named in the same answer forty-three times, of the 106 answers naming Armis Centrix and the 72 naming Tenable OT Security. In those answers Tenable OT Security took the first choice zero times and Armis Centrix two.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Armis Centrix and Tenable OT Security stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | ||||
| GPT-5.4 mini | | | ||||
| Gemini 3.5 Flash | | | | |||
| Perplexity Sonar | | |||||
| Grok 4.1 Fast | | | | |||
| Mistral Small | | | ||||
| DeepSeek V4 Flash | | | | | ||
| Llama 4 Maverick | ||||||
| Qwen 3.7 Flash | | | | |||
| Kimi K2 | | | | | ||
| GLM 4.7 FlashX | ||||||
| MiniMax M2.5 | | | ||||
| GPT-6 Luna | | |||||
| Muse Glimmer 30B | | |
Armis Centrix Tenable OT Security first choice named as an alternative argued againstblank: not namedEach cell is one answer, Armis Centrix on the left and Tenable OT Security on the right.The direct prompt
The plain question, one answer per model, grouped by where Armis Centrix and Tenable OT Security stood in it.
Armis Centrix first, Tenable OT Security not the choice
1 of 14 modelsTenable OT Security was named in the answer but not as the choice, or not at all.Kimi K2Armis Centrix, Claroty xDome alternatives: Fortinet OT Security Platform, Microsoft Defender for IoT, Nozomi Networks Guardian
Neither was the first choice, one was named
3 of 14 modelsThe answer put something else first and named one of the two as an alternative.Claude Haiku 4.5Claroty xDome, Nozomi Networks Guardian alternatives: Dragos Platform, Fortinet OT Security Platform, Palo Alto Networks, Tenable OT Security
GPT-5.4 miniClaroty xDome alternatives: Armis Centrix, Dragos Platform
MiniMax M2.5Radiflow360 alternatives: Armis Centrix, Claroty xDome, Nozomi Networks Guardian, Tenable OT Security
Neither was named
10 of 14 modelsThe answer made no first choice from these two in this category.Gemini 3.5 FlashFortinet OT Security Platform, Microsoft Defender for IoT alternatives: Claroty xDome, Nozomi Networks Guardian
Perplexity SonarRadiflow360 alternatives: Claroty xDome, Dragos Platform, Fortinet OT Security Platform, Palo Alto Networks
Grok 4.1 FastClaroty xDome alternatives: Dragos Platform, Fortinet OT Security Platform, Nozomi Networks Guardian, Palo Alto Networks
Mistral SmallDragos Platform alternatives: Claroty xDome, Nozomi Networks Guardian
DeepSeek V4 FlashClaroty xDome alternatives: Microsoft Defender for IoT, Nozomi Networks Guardian, Palo Alto Networks Industrial OT Security
Llama 4 MaverickPalo Alto Networks alternatives: Claroty xDome, Forcepoint
Qwen 3.7 FlashIndustrial AI alternatives: Claroty xDome, Nozomi Networks Guardian, Tenable.io OT
GLM 4.7 FlashXFortinet OT Security Platform alternatives: Dragos Platform, Nozomi Networks Guardian
GPT-6 LunaNozomi Networks Vantage alternatives: Claroty xDome, Dragos Platform
Muse Glimmer 30BRadiflow360 alternatives: Claroty xDome, Nozomi Networks Guardian
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Tenable OT Security leads by two points.
Tenable OT Security4%#3 of 9Armis Centrix2%#5 of 9Mid-marketThe figures above
The order flips: Armis Centrix leads at mid-market.
Armis Centrix6%#5 of 9Tenable OT Security4%#6 of 9Enterprise
Armis Centrix leads by six points.
Armis Centrix6%#5 of 9Tenable OT Security0%#8 of 9What the models said about Armis Centrix
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Example Platforms to approach with caution: Armis Centrix (or similar integration-heavy IT/IoT platforms)” Gemini 3.5 Flash · negative prompt · soft negative
“Strong on IoT/XIoT discovery but weaker on deep OT protocol knowledge vs. natives like Dragos/Nozomi.” Grok 4.1 Fast · negative prompt · soft negative
“not the same as deep OT-native detection; they may be better suited to IoT visibility” Perplexity Sonar · negative prompt · soft negative
“I'd recommend Armis as the primary choice due to its balance of comprehensive device discovery, ease of implementation, and vendor compatibility” Claude Haiku 4.5 · paraphrase prompt · first choice
“You should only choose Agentless (passive monitoring) platforms like Claroty, Nozomi, or Armis for OT.” Qwen 3.7 Flash · negative prompt · first choice
“start with Claroty xDome or Armis” Kimi K2 · direct prompt · first choice
What the models said about Tenable OT Security
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“These are IT-security vendors extending into OT. Their effectiveness depends on how well their OT findings integrate with your existing SOC” Mistral Small · negative prompt · soft negative
“these vendors risk falling behind peers regarding advanced AI-driven detection capabilities” Qwen 3.7 Flash · negative prompt · soft negative
“Tenable.ot has user complaints on asset classification accuracy and sensor bugs” Grok 4.1 Fast · negative prompt · soft negative
“frequently cited as a more budget-friendly option compared to some competitors... Start with a free trial or the most affordable commercial platform (like Tenable OT Security or Acreto)” Mistral Small · budget prompt · first choice
“Best Overall Value: Tenable OT Security (formerly Tenable.ot)” DeepSeek V4 Flash · budget prompt · first choice
“Tenable's Tenable One exposure management platform is a comprehensive attack surface management system covering endpoints, cloud environments, OT systems” Claude Haiku 4.5 · direct prompt · alternative
Also compared
Microsoft Defender for IoT vs Armis CentrixMicrosoft Defender for IoT vs Tenable OT SecurityClaroty xDome vs Armis CentrixClaroty xDome vs Tenable OT SecurityNozomi Networks Guardian vs Armis CentrixNozomi Networks Guardian vs Tenable OT SecurityFortinet OT Security Platform vs Armis CentrixFortinet OT Security Platform vs Tenable OT SecurityArmis Centrix vs Dragos PlatformArmis Centrix vs Palo Alto NetworksTenable OT Security vs Dragos PlatformTenable OT Security vs Palo Alto NetworksAll twenty-eight head-to-head pages and the full ot/iot security standing
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.