Attack surface management · November 2026 Edition
Censys ASM vs Tenable Attack Surface Management
One of fourteen models named Censys ASM first on the direct prompt; zero named Tenable Attack Surface Management. Censys ASM was named by thirteen of the fourteen models and Tenable Attack Surface Management by fourteen and Censys ASM carries 30 labels and Tenable Attack Surface Management 22, so the shares are not directly comparable.
Named in one category this edition.
Named in one category this edition.
First-choice share6%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate20%18%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#5#8A position in a field of 12; printed, not drawn.
Labels3022A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Censys ASM reading right to left. Rank and label count are printed, not drawn.Microsoft Defender External Attack Surface Management was named alongside these two in ten of the fourteen direct answers. Intruder vs Censys ASM · Intruder vs Tenable Attack Surface Management · Attaxion vs Censys ASM
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 attack surface management page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Censys ASMFirst choices, of fourteen modelsTenable Attack Surface Management
Direct102 against Censys ASM
Paraphrase111 against Tenable Attack Surface Management
Comparative00
Budget-constrained10
Scale-constrained001 against Tenable Attack Surface Management
Negative004 against Censys ASM · 2 against Tenable Attack Surface Management
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 November 2026 Edition, Censys ASM and Tenable Attack Surface Management were named in the same answer thirty-nine times, of the 80 answers naming Censys ASM and the 81 naming Tenable Attack Surface Management. In those answers Tenable Attack Surface Management took the first choice two times and Censys ASM two.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Censys ASM and Tenable Attack Surface Management 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 4.20 | | | ||||
| 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 | |
Censys ASM Tenable Attack Surface Management first choice named as an alternative argued againstblank: not namedEach cell is one answer, Censys ASM on the left and Tenable Attack Surface Management on the right.The direct prompt
The plain question, one answer per model, grouped by where Censys ASM and Tenable Attack Surface Management stood in it.
Censys ASM first, Tenable Attack Surface Management not the choice
1 of 14 modelsTenable Attack Surface Management was named in the answer but not as the choice, or not at all.GPT-5.4 miniCensys ASM alternatives: IONIX, Intruder, Microsoft Defender External Attack Surface Management
Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.Claude Haiku 4.5Intruder alternatives: CrowdStrike Falcon Surface, CyCognito, Microsoft Defender External Attack Surface Management, Tenable Attack Surface Management, UpGuard BreachSight
Gemini 3.5 FlashCyCognito alternatives: Censys ASM, Detectify, Microsoft Defender External Attack Surface Management, UpGuard BreachSight
Qwen 3.7 FlashTenable Vulnerability Management alternatives: Censys ASM, Dive, Rapid7
GPT-6 LunaMicrosoft Defender External Attack Surface Management alternatives: Censys ASM, CyCognito
Neither was named
9 of 14 modelsThe answer made no first choice from these two in this category.Perplexity SonarIntruder alternatives: Microsoft Defender External Attack Surface Management, UpGuard BreachSight
Grok 4.20Intruder alternatives: CrowdStrike Falcon Exposure Management, CyCognito, Microsoft Defender External Attack Surface Management
Mistral SmallCyCognito, Intruder alternatives: Microsoft Defender External Attack Surface Management
DeepSeek V4 FlashUpGuard BreachSight alternatives: CyCognito, Intruder, Microsoft Defender External Attack Surface Management
Llama 4 Maverickno first choice
Kimi K2Intruder alternatives: CyCognito, Microsoft Defender External Attack Surface Management, SynScan
GLM 4.7 FlashXIntruder alternatives: CyCognito, SecurityScorecard
MiniMax M2.5Intruder alternatives: Attaxion, Halo Security
Muse Glimmer 30BIntruder alternatives: CyCognito, Microsoft Defender External Attack Surface Management
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
Censys ASM leads by six points.
Censys ASM6%#5 of 14Tenable Attack Surface Management0%#12 of 14Mid-marketThe figures above
Censys ASM leads by four points.
Censys ASM6%#5 of 12Tenable Attack Surface Management2%#8 of 12Enterprise
The order flips: Tenable Attack Surface Management leads at enterprise.
Tenable Attack Surface Management7%#3 of 10Censys ASM0%#8 of 10What the models said about Censys ASM
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Censys ASM is a platform that several sources explicitly advise caution about or even avoid for certain use cases” Mistral Small · negative prompt · hard negative
“delivers best-in-class internet scanning as a data layer but offers no validation, making it a strong input rather than a standalone program” Llama 4 Maverick · negative prompt · soft negative
“The interface and workflow can feel more technical; pricing isn't published and may scale beyond mid-market comfort zones.” DeepSeek V4 Flash · direct prompt · soft negative
“If your budget is tight, Censys ASM is usually the best first place to look.” GPT-5.4 mini · budget prompt · first choice
“Censys ASM is probably the best default choice for a mid-market B2B company” GPT-5.4 mini · direct prompt · first choice
“My default recommendation: Censys ASM for a mid-sized B2B company” GPT-6 Luna · paraphrase prompt · first choice
What the models said about Tenable Attack Surface Management
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“economically attractive when you already use the corresponding ecosystem, but avoid assuming that an existing EDR or vulnerability-management deployment automatically provides complete external discovery” Perplexity Sonar · negative prompt · soft negative
“they can feel complex and expensive for mid-sized teams (better suited to enterprises with dedicated resources)” Grok 4.20 · paraphrase prompt · soft negative
“Users note room for improvement in integration with other tools” DeepSeek V4 Flash · negative prompt · soft negative
“I'd usually recommend Tenable One Attack Surface Management as the default starting point” GPT-5.4 mini · paraphrase prompt · first choice
“Tenable One Attack Surface Management link external findings to existing vulnerability and exposure management workflows” Muse Glimmer 30B · comparative prompt · alternative
“suits organizations that have already invested in the Tenable vulnerability management ecosystem” MiniMax M2.5 · comparative prompt · alternative
Also compared
Intruder vs Censys ASMIntruder vs Tenable Attack Surface ManagementAttaxion vs Censys ASMAttaxion vs Tenable Attack Surface ManagementCyCognito vs Censys ASMCyCognito vs Tenable Attack Surface ManagementMicrosoft Defender External Attack Surface Management vs Censys ASMMicrosoft Defender External Attack Surface Management vs Tenable Attack Surface ManagementCensys ASM vs UpGuard BreachSightCensys ASM vs Cortex XpanseUpGuard BreachSight vs Tenable Attack Surface ManagementCortex Xpanse vs Tenable Attack Surface ManagementAll twenty-eight head-to-head pages and the full ASM 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.