Data loss prevention · November 2026 Edition
Microsoft Purview DLP vs Nightfall AI
Ten of fourteen models named Microsoft Purview DLP first on the direct prompt; zero named Nightfall AI. Microsoft Purview DLP was named by fourteen of the fourteen models and Nightfall AI by thirteen and Microsoft Purview DLP carries 64 labels and Nightfall AI 28, so the shares are not directly comparable.
Named in seven categories this edition.
Named in four categories this edition.
First-choice share48%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate6%4%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#4A position in a field of 15; printed, not drawn.
Labels6428A 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.Safetica ONE was named alongside these two in nine of the fourteen direct answers. Microsoft Purview DLP vs Safetica ONE · Microsoft Purview DLP vs Teramind 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
Direct1001 against Nightfall AI
Paraphrase81
Comparative60
Budget-constrained61
Scale-constrained31
Negative204 against Microsoft Purview DLP
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, Microsoft Purview DLP and Nightfall AI were named in the same answer seventy-four times, of the 235 answers naming Microsoft Purview DLP and the 132 naming Nightfall AI. In those answers Nightfall AI took the first choice ten times and Microsoft Purview DLP thirty.
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 4.20 | | | | | | |
| 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 | | | |
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
10 of 14 modelsNightfall AI was named in the answer but not as the choice, or not at all.GPT-5.4 miniMicrosoft Purview DLP alternatives: Forcepoint DLP, Netskope DLP
Gemini 3.5 FlashMicrosoft Purview DLP alternatives: Cyberhaven, Netskope Next-Gen DLP, Netwrix Endpoint Protector, Nightfall AI, Strac
Perplexity SonarMicrosoft Purview DLP alternatives: CurrentWare, Nightfall AI, Safetica ONE, Strac
Grok 4.20Microsoft Purview DLP alternatives: Nightfall AI, Safetica ONE
Mistral SmallMicrosoft Purview DLP alternatives: CurrentWare, Safetica ONE
DeepSeek V4 FlashMicrosoft Purview DLP alternatives: Cyberhaven, Forcepoint DLP, Proofpoint Enterprise DLP, Safetica ONE
Llama 4 MaverickMicrosoft Purview DLP alternatives: Check Point DLP, Forcepoint DLP, Safetica ONE
GLM 4.7 FlashXMicrosoft Purview DLP alternatives: Forcepoint DLP, Safetica ONE
MiniMax M2.5Microsoft Purview DLP alternatives: Cyberhaven, Nightfall AI
GPT-6 LunaMicrosoft Purview DLP alternatives: Netskope DLP, Nightfall AI
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 4.5Safetica ONE alternatives: Kitecyber, Microsoft Purview DLP, Netwrix Endpoint Protector
Qwen 3.7 FlashSafetica ONE alternatives: DoControl, Forcepoint DLP, Microsoft Purview DLP, Nightfall AI
Kimi K2Next DLP alternatives: Microsoft Purview DLP, Safetica ONE
Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.Muse Glimmer 30Bno first choice
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 thirty-four points.
Microsoft Purview DLP51%#1 of 14Nightfall AI17%#2 of 14Mid-marketThe figures above
Microsoft Purview DLP leads by forty-three points.
Microsoft Purview DLP48%#1 of 15Nightfall AI5%#4 of 15Enterprise
Microsoft Purview DLP leads by sixty-eight points.
Microsoft Purview DLP68%#1 of 13Nightfall AI0%#10 of 13What 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.
“Initial versions had high false positive rates - Complex policy creation for some users - Limited customization options in early iterations” MiniMax M2.5 · negative prompt · soft negative
“protection weakens outside Microsoft services and custom classifiers may require training data and substantial tuning” Perplexity Sonar · negative prompt · soft negative
“Microsoft Purview's endpoint controls have browser-specific requirements and supported-action differences” GPT-6 Luna · negative prompt · soft negative
“If your workforce relies primarily on Microsoft 365 and Windows endpoints, Microsoft Purview provides the lowest barrier to entry and fastest time to value.” Gemini 3.5 Flash · comparative prompt · first choice
“For most mid-market B2B companies, Microsoft Purview DLP offers the best combination of price, functionality, and ease of use” MiniMax M2.5 · direct prompt · first choice
“Microsoft Purview is consistently ranked #1 for bundled estate DLP because it's woven into the Microsoft 365 compliance stack.” Kimi K2 · 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.
“Especially attractive to startups and mid-sized firms adopting cloud-first strategies, but lacks network-level DLP and deeper endpoint controls.” Claude Haiku 4.5 · direct prompt · soft negative
“Look at modern vendors built for mid-market and cloud-first environments (e.g., *Cyberhaven, Nightfall AI, Next DLP, or Code42/Incydr*).” Gemini 3.5 Flash · scale prompt · first choice
“Nightfall or Safetica are the best starting points due to their ease of use, cloud focus, and scalability” Mistral Small · paraphrase prompt · first choice
“Nightfall and Teramind are the most commonly recommended low-cost commercial picks” Muse Glimmer 30B · budget prompt · first choice
Also compared
Microsoft Purview DLP vs Safetica ONEMicrosoft Purview DLP vs Teramind DLPMicrosoft Purview DLP vs Netskope DLPMicrosoft Purview DLP vs CyberhavenMicrosoft Purview DLP vs Netwrix Endpoint ProtectorMicrosoft Purview DLP vs Proofpoint Enterprise DLPSafetica ONE vs Nightfall AITeramind DLP vs Nightfall AINightfall AI vs Netskope DLPNightfall AI vs CyberhavenNightfall 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.