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Enterprise AI assistants · October 2026 Edition

Microsoft Copilot vs Glean

One of fourteen models named Microsoft Copilot first on the direct prompt; one named Glean. Microsoft Copilot was named by eleven of the fourteen models and Glean by seven and both carry 16 labels, so the shares below are directly comparable.

Microsoft Copilot

accepted challenger

Named in five categories this edition.

Glean

accepted challenger

Named in two categories this edition.

First-choice share6%6%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate6%6%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#5A position in a field of 7; printed, not drawn.
Labels1616Equal, which is what makes the shares comparable.
The two percentage rows are drawn on one 0 to 100 track, Microsoft Copilot reading right to left. Rank and label count are printed, not drawn.ChatGPT vs Microsoft Copilot · ChatGPT vs Glean · Microsoft 365 Copilot vs Microsoft Copilot

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 AI assistants 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 CopilotFirst choices, of fourteen modelsGlean
Direct11
Paraphrase121 against Glean
Comparative10
Budget-constrained101 against Microsoft Copilot
Scale-constrained00
Negative00
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 Copilot and Glean were named in the same answer fourteen times, of the 67 answers naming Microsoft Copilot and the 59 naming Glean. In those answers Glean took the first choice one time and Microsoft Copilot four.

Every model, every framing

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

The direct prompt

The plain question, one answer per model, grouped by where Microsoft Copilot and Glean stood in it.

Microsoft Copilot first, Glean an alternative

1 of 14 modelsGlean was named in the answer but not as the choice, or not at all.
Grok 4.1 FastMicrosoft Copilot alternatives: Glean, Gong, Salesforce Einstein

Glean first, Microsoft Copilot not the choice

1 of 14 modelsMicrosoft Copilot was named in the answer but not as the choice, or not at all.
Gemini 3.5 FlashGlean, Microsoft 365 Copilot alternatives: 1mind, ChatGPT Team or Enterprise, Moveworks

Neither was the first choice, one was named

4 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.51mind, AI Hive alternatives: Gong, Microsoft Copilot
GPT-5.4 miniChatGPT alternatives: Gemini for Workspace, Google Gemini, Microsoft Copilot
Perplexity SonarHubSpot with Breeze AI alternatives: Artisan, Glean, Microsoft 365 Copilot, Regie.ai, Writer, ZoomInfo
Qwen 3.7 FlashHubSpot Breeze AI alternatives: Apollo, Chorus, Clay, Gong, Microsoft Copilot, Salesforce Einstein, Slack AI

Neither was named

8 of 14 modelsThe answer made no first choice from these two in this category.
Mistral SmallGong alternatives: ChatGPT, HubSpot AI, Monday.com Revenue AI OS
DeepSeek V4 FlashMicrosoft 365 Copilot alternatives: ChatGPT, Claude, Glean Assistant, Google Gemini
Llama 4 Maverickno first choice
Kimi K2Microsoft 365 Copilot alternatives: Gong
GLM 4.7 FlashXMicrosoft 365 Copilot alternatives: Gong, HubSpot Breeze AI, Monday CRM with AI
MiniMax M2.5no first choice
GPT-6 LunaChatGPT alternatives: Google Workspace with Gemini, Microsoft 365 Copilot
Muse Glimmer 30BHubSpot Breeze AI alternatives: Gong Revenue AI OS, Intercom, Respond.io

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
Microsoft Copilot leads by eleven points.
Microsoft Copilot11%#3 of 6
Glean0%#6 of 6
The full small business standing →
Mid-marketThe figures above
Level: the same share of first choices.
Microsoft Copilot6%#4 of 7
Glean6%#5 of 7
The full mid-market standing →
Enterprise
The order flips: Glean leads at enterprise.
Glean10%#3 of 7
Microsoft Copilot2%#– of 7
The full enterprise standing →

What the models said about Microsoft Copilot

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

“Avoid Microsoft Copilot unless you're already heavily invested in Microsoft 365” Kimi K2 · budget prompt · hard negative
“If you're already in the Microsoft ecosystem and want the fastest rollout with minimal extra cost, Microsoft Copilot (Power Virtual Agents) is a solid default.” MiniMax M2.5 · paraphrase prompt · first choice
“If 90% of your company's work happens in Microsoft Teams and Outlook, Microsoft Copilot is the default choice.” Gemini 3.5 Flash · comparative prompt · first choice
“If general productivity, go Microsoft Copilot (versatile, high adoption).” Grok 4.1 Fast · direct prompt · first choice

What the models said about Glean

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

“Avoid over-investing in "enterprise-only" platforms like Glean or Moveworks” Kimi K2 · paraphrase prompt · soft negative
“Best Overall for Connected Knowledge & Search: Glean ... Glean is the gold standard.” Gemini 3.5 Flash · paraphrase prompt · first choice
“Glean: Best for Cross-Platform Knowledge & "Universal Search"” Gemini 3.5 Flash · direct prompt · first choice
“Top Recommendation: Glean” DeepSeek V4 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.