Vectra AI Platform vs Stellar Cyber Open XDR
Eleven of fourteen models named Vectra AI Platform first on the direct prompt; zero named Stellar Cyber Open XDR. Vectra AI Platform was named by fourteen of the fourteen models and Stellar Cyber Open XDR by twelve and Vectra AI Platform carries 46 labels and Stellar Cyber Open XDR 18, so the shares are not directly comparable.
Named in one category this edition.
Named in four categories this edition.
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 network detection and response page.
By framing
Vectra AI PlatformFirst choices, of fourteen modelsStellar Cyber Open XDR
Across every category in the November 2026 Edition, Vectra AI Platform and Stellar Cyber Open XDR were named in the same answer twenty-seven times, of the 144 answers naming Vectra AI Platform and the 102 naming Stellar Cyber Open XDR. In those answers Stellar Cyber Open XDR took the first choice six times and Vectra AI Platform five.
Every model, every framing
| 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 | | | |
Vectra AI Platform Stellar Cyber Open XDR first choice named as an alternative argued againstblank: not namedEach cell is one answer, Vectra AI Platform on the left and Stellar Cyber Open XDR on the right.The direct prompt
Vectra AI Platform first, Stellar Cyber Open XDR an alternative
11 of 14 modelsStellar Cyber Open XDR was named in the answer but not as the choice, or not at all.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.Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.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
Stellar Cyber Open XDR7%#3 of 15Vectra AI Platform2%#9 of 15Vectra AI Platform24%#1 of 10Stellar Cyber Open XDR2%#7 of 10Vectra AI Platform24%#1 of 8Stellar Cyber Open XDR2%#– of 8What the models said about Vectra AI Platform
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“What to Avoid: Enterprise-only platforms like Darktrace or Vectra AI (typically $100K+)” GLM 4.7 FlashX · budget prompt · hard negative
“Vectra AI — powerful but generally cost-prohibitive for small budgets” DeepSeek V4 Flash · budget prompt · hard negative
“Criticized for: Being detection-first with evidence as secondary product” MiniMax M2.5 · negative prompt · hard negative
“Vectra AI achieved the highest placement in the inaugural 2025 Gartner Magic Quadrant for NDR, ranking first in both Ability to Execute and Completeness of Vision” Claude Haiku 4.5 · direct prompt · first choice
“Choose Vectra AI if your primary challenge is prioritizing real attack signals across hybrid networks, cloud control planes, and identity layers” Gemini 3.5 Flash · comparative prompt · first choice
“Best For: Reducing alert fatigue and prioritizing real attacks for small security teams... consistently ranks as an industry leader” Gemini 3.5 Flash · direct prompt · first choice
What the models said about Stellar Cyber Open XDR
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of three in this category shown.
“Evaluate Stellar Cyber, though it is better viewed as Open XDR than pure NDR.” Perplexity Sonar · comparative prompt · soft negative
“Stellar Cyber is recommended for enterprises with limited staff and budget” Claude Haiku 4.5 · budget prompt · first choice
“Stellar Cyber Open XDR is the most commonly recommended budget-conscious commercial platform for SMBs 1-50 employees.” Muse Glimmer 30B · budget prompt · alternative
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.