AI Indexes
IT AI Index
Index › Security operations › Comms archiving › Mimecast Cloud Archive vs Google Vault
Communications archiving and compliance · October 2026 Edition

Mimecast Cloud Archive vs Google Vault

Five of fourteen models named Mimecast Cloud Archive first on the direct prompt; zero named Google Vault. Mimecast Cloud Archive was named by twelve of the fourteen models and Google Vault by eleven and Mimecast Cloud Archive carries 36 labels and Google Vault 17, so the shares are not directly comparable.

Mimecast Cloud Archive

accepted challenger

Named in one category this edition.

Google Vault

accepted challenger

Named in one category this edition.

First-choice share17%8%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate11%18%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#4A position in a field of 12; printed, not drawn.
Labels3617A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Mimecast Cloud Archive reading right to left. Rank and label count are printed, not drawn.Smarsh Enterprise Archive was named alongside these two in eleven of the fourteen direct answers. Smarsh Enterprise Archive vs Mimecast Cloud Archive · Smarsh Enterprise Archive vs Google Vault · Mimecast Cloud Archive vs Microsoft Purview

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 communications archiving and compliance page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Mimecast Cloud ArchiveFirst choices, of fourteen modelsGoogle Vault
Direct50
Paraphrase411 against Mimecast Cloud Archive · 1 against Google Vault
Comparative001 against Google Vault
Budget-constrained04
Scale-constrained10
Negative003 against Mimecast Cloud Archive · 1 against Google Vault
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, Mimecast Cloud Archive and Google Vault were named in the same answer nineteen times, of the 93 answers naming Mimecast Cloud Archive and the 60 naming Google Vault. In those answers Google Vault took the first choice three times and Mimecast Cloud Archive one.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Mimecast Cloud Archive and Google Vault 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
Mimecast Cloud Archive Google Vault first choice named as an alternative argued againstblank: not namedEach cell is one answer, Mimecast Cloud Archive on the left and Google Vault on the right.

The direct prompt

The plain question, one answer per model, grouped by where Mimecast Cloud Archive and Google Vault stood in it.

Mimecast Cloud Archive first, Google Vault not the choice

5 of 14 modelsGoogle Vault was named in the answer but not as the choice, or not at all.
Claude Haiku 4.5Mimecast Cloud Archive, Smarsh Enterprise Archive alternatives: Arcserve UDP Archiving, ComplyKEY MailMeter, MailStore Server
Gemini 3.5 FlashMimecast Cloud Archive alternatives: Barracuda Cloud Archiving Service, Proofpoint Enterprise Archive, Theta Lake
Mistral SmallMimecast Cloud Archive, Smarsh Enterprise Archive alternatives: Microsoft Purview, Proofpoint Enterprise Archive
Qwen 3.7 FlashMimecast Cloud Archive, Proofpoint Enterprise Archive alternatives: Global Relay, OpenText, Smarsh Enterprise Archive, Wordwatch
GPT-6 LunaMimecast Cloud Archive alternatives: Global Relay, Microsoft Purview, Proofpoint Enterprise Archive, Smarsh Enterprise Archive

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.
GPT-5.4 miniSmarsh Enterprise Archive alternatives: Archive360, Microsoft Purview, Mimecast Cloud Archive, Theta Lake
DeepSeek V4 FlashJatheon alternatives: Mimecast Cloud Archive, Proofpoint Enterprise Archive
Kimi K2Barracuda Cloud Archiving Service, MailStore Server alternatives: Jatheon, Mimecast Cloud Archive, Smarsh Enterprise Archive
GLM 4.7 FlashXGlobal Relay, Smarsh Enterprise Archive alternatives: Mimecast Cloud Archive, Theta Lake, Wordwatch
MiniMax M2.5Global Relay, Smarsh Enterprise Archive alternatives: Mimecast Cloud Archive, Proofpoint Enterprise Archive, Theta Lake

Neither was named

4 of 14 modelsThe answer made no first choice from these two in this category.
Perplexity SonarSmarsh Enterprise Archive alternatives: Global Relay, Mimecast Archiving, Wordwatch
Grok 4.1 FastSmarsh Enterprise Archive alternatives: Global Relay, Jatheon
Llama 4 Maverickno first choice
Muse Glimmer 30BBarracuda Archiving Service / Barracuda Cloud Archiving Service alternatives: Global Relay, Proofpoint Enterprise Archive, Smarsh Enterprise Archive, Wordwatch

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
Google Vault leads by twenty points.
Google Vault20%#1 of 10
Mimecast Cloud Archive0%#8 of 10
The full small business standing →
Mid-marketThe figures above
The order flips: Mimecast Cloud Archive leads at mid-market.
Mimecast Cloud Archive17%#2 of 12
Google Vault8%#4 of 12
The full mid-market standing →
Enterprise
Mimecast Cloud Archive leads by nine points.
Mimecast Cloud Archive9%#4 of 10
Google Vault0%#10 of 10
The full enterprise standing →

What the models said about Mimecast Cloud Archive

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

“Include Mimecast in the shortlist. Its archive product covers email and collaboration data, but check that its capture and review capabilities match your actual channels” GPT-6 Luna · paraphrase prompt · soft negative
“Mimecast remains a powerful tool, but if you choose to use it, you must carefully vet their security protocols” Gemini 3.5 Flash · negative prompt · soft negative
“its archiving solution can be complex to set up and may require significant administrative overhead” Mistral Small · negative prompt · soft negative
“Jatheon or Mimecast — Jatheon offers excellent multi-channel coverage at competitive pricing for mid-market, while Mimecast provides a robust consolidated platform” Kimi K2 · paraphrase prompt · first choice
“For a true mid-market B2B company, Mimecast or Smarsh Professional Archive tend to offer the best balance of features, scalability, and cost-effectiveness.” Claude Haiku 4.5 · direct prompt · first choice
“1#1: Mimecast - Cloud-based email archiving solution with advanced search, eDiscovery, and compliance retention policies.” Muse Glimmer 30B · paraphrase prompt · first choice

What the models said about Google Vault

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

“built-in tools like Microsoft 365 retention, Google Vault, and Slack’s native archive are repeatedly described as insufficient for full compliance” Perplexity Sonar · negative prompt · soft negative
“Limitation: Less robust than dedicated platforms for regulated industries” Kimi K2 · comparative prompt · soft negative
“Google Vault will not easily archive MS Teams” Gemini 3.5 Flash · paraphrase prompt · soft negative
“start with MailStore Server (if you can handle on-premises) or Google Vault (if already using Google Workspace)” MiniMax M2.5 · budget prompt · first choice
“Google Vault stands out as the best communications archiving platform for a company with a limited budget” Grok 4.1 Fast · budget prompt · first choice
“Google Vault is often recommended as a cost-effective communications archiving solution” Mistral Small · budget 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.