# Pure Storage FlashArray vs NetApp AFF: which do AI models recommend for enterprise storage, October 2026

IT AI Recommendation Index, October 2026 Edition, Enterprise storage systems. One of fourteen models named Pure Storage FlashArray first on the direct prompt; zero named NetApp AFF. Page: https://it-ai-index.com/cloud/enterprise-storage-systems/pure-storage-flasharray-vs-netapp-aff/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Pure Storage FlashArray | 12% | #2 of 8 | 3% | 38 | 13 of 14 |
| NetApp AFF | 9% | #3 of 8 | 6% | 36 | 13 of 14 |

## The direct prompt, model by model

- Gemini 3.5 Flash: pure storage flasharray first (first choices: Dell Technologies, Pure Storage FlashArray) (alternatives: HPE, NetApp AFF)
- Perplexity Sonar: neither first, one named (first choices: Dell PowerStore) (alternatives: Dell Unity XT, HPE Alletra Storage MP B10000, NetApp AFF)
- Grok 4.1 Fast: neither first, one named (first choices: Dell PowerStore) (alternatives: HPE Alletra Storage MP, Pure Storage FlashArray)
- Mistral Small: neither first, one named (first choices: Infinidat InfiniBox SSA G4 F4416T, Weka WEKApod) (alternatives: Dell EMC PowerStore, Pure Storage FlashArray)
- DeepSeek V4 Flash: neither first, one named (first choices: Dell PowerStore) (alternatives: NetApp AFF / FAS Series, Pure Storage FlashArray)
- Qwen 3.7 Flash: neither first, one named (first choices: Dell PowerStore) (alternatives: HPE Alletra 9000, Hitachi Vantara VSP One, Pure Storage FlashArray)
- Kimi K2: neither first, one named (first choices: Dell PowerStore) (alternatives: HPE Alletra Storage MP B10000, NetApp AFF, Pure Storage FlashArray)
- GLM 4.7 FlashX: neither first, one named (first choices: Dell EMC PowerStore) (alternatives: Infinidat InfiniBox, NetApp AFF C-Series, Pure Storage FlashArray)
- GPT-6 Luna: neither first, one named (first choices: Dell PowerStore) (alternatives: FlashArray//X, HPE Alletra Storage MP B10000, IBM FlashSystem, NetApp AFF, Pure Storage FlashArray//C)
- Muse Glimmer 30B: neither first, one named (first choices: Dell Technologies) (alternatives: HPE, NetApp AFF, Pure Storage FlashArray)
- Claude Haiku 4.5: neither named
- GPT-5.4 mini: neither named (first choices: Dell PowerStore, HPE Alletra Storage MP B10000)
- Llama 4 Maverick: neither named
- MiniMax M2.5: neither named

## What the models said about Pure Storage FlashArray

- "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

- "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)

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. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.