Data loss prevention · October 2026 Edition
Microsoft Purview DLP vs Nightfall AI
Seven of fourteen models named Microsoft Purview DLP first on the direct prompt; one named Nightfall AI. Microsoft Purview DLP was named by thirteen of the fourteen models and Nightfall AI by eleven and Microsoft Purview DLP carries 56 labels and Nightfall AI 24, so the shares are not directly comparable.
Named in five categories this edition.
Named in four categories this edition.
First-choice share46%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate14%4%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#5A position in a field of 15; printed, not drawn.
Labels5624A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Microsoft Purview DLP reading right to left. Rank and label count are printed, not drawn.Microsoft Purview DLP vs Safetica · Microsoft Purview DLP vs Forcepoint DLP · Microsoft Purview DLP vs Netskope DLP
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 data loss prevention page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Microsoft Purview DLPFirst choices, of fourteen modelsNightfall AI
Direct711 against Microsoft Purview DLP
Paraphrase801 against Microsoft Purview DLP
Comparative60
Budget-constrained80
Scale-constrained201 against Microsoft Purview DLP
Negative005 against Microsoft Purview DLP · 1 against Nightfall AI
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, Microsoft Purview DLP and Nightfall AI were named in the same answer fifty-five times, of the 187 answers naming Microsoft Purview DLP and the 112 naming Nightfall AI. In those answers Nightfall AI took the first choice five times and Microsoft Purview DLP nineteen.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Microsoft Purview DLP and Nightfall AI 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 | | | |
Microsoft Purview DLP Nightfall AI first choice named as an alternative argued againstblank: not namedEach cell is one answer, Microsoft Purview DLP on the left and Nightfall AI on the right.The direct prompt
The plain question, one answer per model, grouped by where Microsoft Purview DLP and Nightfall AI stood in it.
Microsoft Purview DLP first, Nightfall AI an alternative
7 of 14 modelsNightfall AI was named in the answer but not as the choice, or not at all.Claude Haiku 4.5Microsoft Purview DLP, Safetica
GPT-5.4 miniMicrosoft Purview DLP alternatives: Forcepoint DLP, Netskope DLP
Perplexity SonarMicrosoft Purview DLP, Strac alternatives: Forcepoint DLP, Nightfall AI, Varonis Data Security Platform
Grok 4.1 FastMicrosoft Purview DLP alternatives: CurrentWare, Forcepoint DLP, Netwrix Endpoint Protector
Kimi K2Microsoft Purview DLP alternatives: CurrentWare, Forcepoint DLP, Netwrix Endpoint Protector, Proofpoint Enterprise DLP, miniOrange DLP
GLM 4.7 FlashXMicrosoft Purview DLP alternatives: CrowdStrike Falcon Data Protection, Forcepoint DLP, Netwrix Endpoint Protector, Nightfall AI, Proofpoint Enterprise DLP
GPT-6 LunaMicrosoft Purview DLP alternatives: Google's native protections for Workspace and Google Cloud, Netskope One
Nightfall AI first, Microsoft Purview DLP an alternative
1 of 14 modelsMicrosoft Purview DLP was named in the answer but not as the choice, or not at all.Gemini 3.5 FlashNightfall AI alternatives: Cyberhaven, Microsoft Purview DLP, Safetica
Neither was the first choice, one was named
2 of 14 modelsThe answer put something else first and named one of the two as an alternative.Mistral SmallNetskope DLP alternatives: CurrentWare, Microsoft Purview DLP, Nightfall AI, Safetica, Zscaler Internet Access
DeepSeek V4 FlashNetskope DLP alternatives: Fortra DLP, Next DLP, Nightfall AI
Neither was named
4 of 14 modelsThe answer made no first choice from these two in this category.Llama 4 Maverickno first choice
Qwen 3.7 FlashNetwrix 1Secure alternatives: Forcepoint DLP, Varonis Data Security Platform
MiniMax M2.5Next DLP
Muse Glimmer 30BSafetica, Safetica ONE alternatives: CurrentWare, Zscaler Internet Access, miniOrange DLP
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
Microsoft Purview DLP leads by twenty-six points.
Microsoft Purview DLP35%#1 of 11Nightfall AI9%#4 of 11Mid-marketThe figures above
Microsoft Purview DLP leads by forty-four points.
Microsoft Purview DLP46%#1 of 15Nightfall AI2%#5 of 15Enterprise
Microsoft Purview DLP leads by fifty-seven points.
Microsoft Purview DLP57%#1 of 11Nightfall AI0%#9 of 11What the models said about Microsoft Purview DLP
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“When to avoid: Non-Microsoft ecosystems or diverse file types/GenAI risks.” Grok 4.1 Fast · negative prompt · hard negative
“Microsoft Purview is highly effective if your organization is completely standardized on the Windows and Microsoft 365 ecosystem. However, you should be cautious if your environment is heterogeneous.” Gemini 3.5 Flash · negative prompt · soft negative
“Common caution themes in recent reviews include missing basic capabilities for some use cases, inconsistent design across workloads, and support that reviewers describe as slow or inflexible.” GPT-5.4 mini · negative prompt · soft negative
“Best value if you already pay for Microsoft 365... Microsoft Purview DLP is a no-brainer—no new infrastructure, just policy configuration.” GLM 4.7 FlashX · budget prompt · first choice
“If you use Microsoft 365: Start with Microsoft Purview DLP for Exchange, SharePoint, and OneDrive if your licenses include it.” GPT-6 Luna · budget prompt · first choice
“The top 5 Data Loss Prevention solutions are Microsoft Purview Data Loss Prevention... best for teams standardized on Microsoft 365” Claude Haiku 4.5 · comparative prompt · first choice
What the models said about Nightfall AI
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.
“Nightfall AI in the cited review, which is noted as having "no network DLP,"” Perplexity Sonar · negative prompt · soft negative
“Best for SaaS, Cloud Collaboration & GenAI Security: Nightfall AI ... Nightfall is an industry leader.” Gemini 3.5 Flash · direct prompt · first choice
“primarily focuses on providing cloud data loss prevention for generative AI tools, custom applications and Software as a Service applications” Muse Glimmer 30B · comparative prompt · alternative
“Nightfall AI is a cloud-native DLP platform that uses machine learning to protect sensitive data across SaaS applications” Claude Haiku 4.5 · comparative prompt · alternative
Also compared
Microsoft Purview DLP vs SafeticaMicrosoft Purview DLP vs Forcepoint DLPMicrosoft Purview DLP vs Netskope DLPMicrosoft Purview DLP vs CurrentWareMicrosoft Purview DLP vs Netwrix Endpoint ProtectorMicrosoft Purview DLP vs Proofpoint Enterprise DLPSafetica vs Nightfall AIForcepoint DLP vs Nightfall AINetskope DLP vs Nightfall AINightfall AI vs CurrentWareNightfall AI vs Netwrix Endpoint ProtectorNightfall AI vs Proofpoint Enterprise DLPAll twenty-eight head-to-head pages and the full DLP 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.