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Enterprise storage systems · October 2026 Edition

Pure Storage FlashArray vs NetApp AFF

One of fourteen models named Pure Storage FlashArray first on the direct prompt; zero named NetApp AFF. Pure Storage FlashArray was named by thirteen of the fourteen models and NetApp AFF by thirteen and Pure Storage FlashArray carries 38 labels and NetApp AFF 36, so the shares are not directly comparable.

Pure Storage FlashArray

accepted challenger

Named in one category this edition.

NetApp AFF

accepted challenger

Named in one category this edition.

First-choice share12%9%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate3%6%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#3A position in a field of 8; printed, not drawn.
Labels3836A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Pure Storage FlashArray reading right to left. Rank and label count are printed, not drawn.Dell PowerStore vs Pure Storage FlashArray · Dell PowerStore vs NetApp AFF · Pure Storage FlashArray vs Dell Technologies

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 enterprise storage systems page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Pure Storage FlashArrayFirst choices, of fourteen modelsNetApp AFF
Direct10
Paraphrase43
Comparative21
Budget-constrained01
Scale-constrained21
Negative211 against Pure Storage FlashArray · 2 against NetApp AFF
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, Pure Storage FlashArray and NetApp AFF were named in the same answer seventy-six times, of the 106 answers naming Pure Storage FlashArray and the 114 naming NetApp AFF. In those answers NetApp AFF took the first choice nine times and Pure Storage FlashArray nineteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Pure Storage FlashArray and NetApp AFF stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
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
Pure Storage FlashArray NetApp AFF first choice named as an alternative argued againstblank: not namedEach cell is one answer, Pure Storage FlashArray on the left and NetApp AFF on the right.

The direct prompt

The plain question, one answer per model, grouped by where Pure Storage FlashArray and NetApp AFF stood in it.

Pure Storage FlashArray first, NetApp AFF an alternative

1 of 14 modelsNetApp AFF was named in the answer but not as the choice, or not at all.
Gemini 3.5 FlashDell Technologies, Pure Storage FlashArray alternatives: HPE, NetApp AFF

Neither was the first choice, one was named

9 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Perplexity SonarDell PowerStore alternatives: Dell Unity XT, HPE Alletra Storage MP B10000, NetApp AFF
Grok 4.1 FastDell PowerStore alternatives: HPE Alletra Storage MP, Pure Storage FlashArray
Mistral SmallInfinidat InfiniBox SSA G4 F4416T, Weka WEKApod alternatives: Dell EMC PowerStore, Pure Storage FlashArray
DeepSeek V4 FlashDell PowerStore alternatives: NetApp AFF / FAS Series, Pure Storage FlashArray
Qwen 3.7 FlashDell PowerStore alternatives: HPE Alletra 9000, Hitachi Vantara VSP One, Pure Storage FlashArray
Kimi K2Dell PowerStore alternatives: HPE Alletra Storage MP B10000, NetApp AFF, Pure Storage FlashArray
GLM 4.7 FlashXDell EMC PowerStore alternatives: Infinidat InfiniBox, NetApp AFF C-Series, Pure Storage FlashArray
GPT-6 LunaDell PowerStore alternatives: FlashArray//X, HPE Alletra Storage MP B10000, IBM FlashSystem, NetApp AFF, Pure Storage FlashArray//C
Muse Glimmer 30BDell Technologies alternatives: HPE, NetApp AFF, Pure Storage FlashArray

Neither was named

4 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5no first choice
GPT-5.4 miniDell PowerStore, HPE Alletra Storage MP B10000
Llama 4 Maverickno first choice
MiniMax M2.5no 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
NetApp AFF leads by five points.
NetApp AFF6%#4 of 9
Pure Storage FlashArray2%#7 of 9
The full small business standing →
Mid-marketThe figures above
The order flips: Pure Storage FlashArray leads at mid-market.
Pure Storage FlashArray12%#2 of 8
NetApp AFF9%#3 of 8
The full mid-market standing →
Enterprise
Pure Storage FlashArray leads by twenty-one points.
Pure Storage FlashArray42%#1 of 9
NetApp AFF21%#2 of 9
The full enterprise standing →

What the models said about Pure Storage FlashArray

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.

“Pure is widely considered the most expensive option on a per-terabyte basis” Qwen 3.7 Flash · negative prompt · soft negative
“Positioned highest in Gartner's Ability to Execute and Vision; excels in simplicity, non-disruptive upgrades, AI-driven management, and efficiency” Grok 4.1 Fast · comparative prompt · first choice
“Pure Storage is widely considered the gold standard for mid-sized companies that do not have dedicated storage administrators.” Gemini 3.5 Flash · paraphrase prompt · first choice
“NetApp ONTAP or Pure Storage FlashArray, depending on whether hybrid flexibility or simplicity/performance is more important.” GPT-5.4 mini · paraphrase prompt · first choice

What the models said about NetApp AFF

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.

“many long-time NetApp users have expressed anxiety about long-term innovation priorities and vendor reliability” Qwen 3.7 Flash · negative prompt · soft negative
“NetApp's entry-level E-series (E2800/E5700) are classic examples... limited scale-out capability” DeepSeek V4 Flash · negative prompt · soft negative
“NetApp AFF A-Series, typically AFF A250 for entry mid-market or AFF A50 for midrange growth, is the most consistently recommended primary storage today” Muse Glimmer 30B · paraphrase prompt · first choice
“Best budget-friendly enterprise storage array: a TrueNAS enterprise appliance or a small NetApp hybrid array” GPT-5.4 mini · budget prompt · first choice
“Products like Dell PowerStore, NetApp AFF, or Pure Storage FlashArray//X are well-suited for your scale” MiniMax M2.5 · scale prompt · first choice
Also compared

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.