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Endpoint protection · October 2026 Edition

Microsoft Defender for Endpoint vs Bitdefender GravityZone

Three of fourteen models named Microsoft Defender for Endpoint first on the direct prompt; four named Bitdefender GravityZone. Both were named by all fourteen models and Microsoft Defender for Endpoint carries 40 labels and Bitdefender GravityZone 34, so the shares are not directly comparable.

Named in seven categories this edition.

Bitdefender GravityZone

accepted challenger

Named in four categories this edition.

First-choice share22%17%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate5%3%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#2A position in a field of 11; printed, not drawn.
Labels4034A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Microsoft Defender for Endpoint reading right to left. Rank and label count are printed, not drawn.Sophos Intercept X was named alongside these two in ten of the fourteen direct answers. Microsoft Defender for Endpoint vs Microsoft Defender for Cloud · Microsoft Defender for Endpoint vs CrowdStrike Falcon · Microsoft Defender for Endpoint vs Sophos Intercept X

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 endpoint protection 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 Defender for EndpointFirst choices, of fourteen modelsBitdefender GravityZone
Direct34
Paraphrase56
Comparative20
Budget-constrained40
Scale-constrained10
Negative012 against Microsoft Defender for Endpoint · 1 against Bitdefender GravityZone
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 Defender for Endpoint and Bitdefender GravityZone were named in the same answer forty-one times, of the 307 answers naming Microsoft Defender for Endpoint and the 105 naming Bitdefender GravityZone. In those answers Bitdefender GravityZone took the first choice three times and Microsoft Defender for Endpoint fourteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Microsoft Defender for Endpoint and Bitdefender GravityZone 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
Microsoft Defender for Endpoint Bitdefender GravityZone first choice named as an alternative argued againstblank: not namedEach cell is one answer, Microsoft Defender for Endpoint on the left and Bitdefender GravityZone on the right.

The direct prompt

The plain question, one answer per model, grouped by where Microsoft Defender for Endpoint and Bitdefender GravityZone stood in it.

Microsoft Defender for Endpoint first, Bitdefender GravityZone an alternative

3 of 14 modelsBitdefender GravityZone was named in the answer but not as the choice, or not at all.
Grok 4.1 FastMicrosoft Defender for Endpoint alternatives: Bitdefender GravityZone, SentinelOne Singularity, Sophos Intercept X
Qwen 3.7 FlashMicrosoft Defender for Endpoint alternatives: CrowdStrike Falcon, SentinelOne Singularity Endpoint, Sophos Intercept X, Trend Vision One
Kimi K2Microsoft Defender for Endpoint alternatives: Bitdefender GravityZone, CrowdStrike Falcon, SentinelOne Singularity

Bitdefender GravityZone first, Microsoft Defender for Endpoint an alternative

4 of 14 modelsMicrosoft Defender for Endpoint was named in the answer but not as the choice, or not at all.
Perplexity SonarBitdefender GravityZone alternatives: CrowdStrike Falcon, Microsoft Defender for Endpoint, SentinelOne Singularity, Sophos Intercept X
Mistral SmallBitdefender GravityZone, CrowdStrike Falcon alternatives: Acronis Cyber Protect
Llama 4 MaverickBitdefender GravityZone
MiniMax M2.5Bitdefender GravityZone, CrowdStrike Falcon alternatives: Microsoft Defender for Endpoint, Sophos Intercept X

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Sophos Intercept X alternatives: Bitdefender GravityZone, Microsoft Defender for Endpoint, Palo Alto Networks Cortex XDR
GPT-5.4 miniCrowdStrike Falcon alternatives: Microsoft Defender for Endpoint, SentinelOne Singularity Endpoint, Sophos Intercept X
DeepSeek V4 FlashSentinelOne Singularity alternatives: Bitdefender GravityZone, CrowdStrike Falcon, Microsoft Defender for Business / Endpoint, Sophos Intercept X
GLM 4.7 FlashXCrowdStrike Falcon alternatives: Microsoft Defender for Endpoint, Sophos Intercept X
GPT-6 LunaCrowdStrike Falcon alternatives: Microsoft Defender for Endpoint, SentinelOne Singularity

Neither was named

2 of 14 modelsThe answer made no first choice from these two in this category.
Gemini 3.5 FlashSophos Intercept X alternatives: Huntress Managed EDR, Microsoft Defender for Business / Defender for Endpoint, SentinelOne Singularity
Muse Glimmer 30BBitdefender GravityZone Business Security, Microsoft Defender for Business / Defender for Endpoint alternatives: CrowdStrike Falcon, SentinelOne Singularity, Sophos Intercept X

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
Bitdefender GravityZone leads by three points.
Bitdefender GravityZone7%#3 of 12
Microsoft Defender for Endpoint3%#6 of 12
The full small business standing →
Mid-marketThe figures above
The order flips: Microsoft Defender for Endpoint leads at mid-market.
Microsoft Defender for Endpoint22%#1 of 11
Bitdefender GravityZone17%#2 of 11
The full mid-market standing →
Enterprise
Microsoft Defender for Endpoint leads by forty-three points.
Microsoft Defender for Endpoint44%#1 of 9
Bitdefender GravityZone2%#5 of 9
The full enterprise standing →

What the models said about Microsoft Defender for Endpoint

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

“I'd suggest starting with a pilot of Microsoft Defender for Endpoint (if you're in the Microsoft ecosystem) or Bitdefender GravityZone” Kimi K2 · paraphrase prompt · first choice
“Microsoft Defender and Bitdefender are especially recommended for their balance of cost, ease of use, and effectiveness for small businesses.” Mistral Small · budget prompt · first choice

What the models said about Bitdefender GravityZone

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

“may not be best for teams needing highly customized reports or fully managed security services” Claude Haiku 4.5 · negative prompt · soft negative
“starting with a pilot of Microsoft Defender for Endpoint ... or Bitdefender GravityZone (if you want simplicity and cost predictability)” Kimi K2 · paraphrase prompt · first choice
“such as ESET, Bitdefender, SentinelOne, and Microsoft Defender for Endpoint, which generally balance detection, low latency” Qwen 3.7 Flash · negative prompt · first choice
“the two most highly recommended solutions are Microsoft Defender for Endpoint and Bitdefender GravityZone” Qwen 3.7 Flash · paraphrase 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.