Gemini for Google Workspace vs Microsoft 365 Copilot
As of 28 Oct 2026, the panel rates Gemini for Google Workspace 2/5 and Microsoft 365 Copilot 3/5 in AI Agents & Assistants. Weighted by what each judge cares about, 0 of the 6 judges pick Gemini for Google Workspace and 6 pick Microsoft 365 Copilot. Microsoft 365 Copilot scores higher on 6 of 6 criteria (Data use, training & retention, Integrations, connectors & knowledge, Models & processing location, plus 3 more). Provenance — Gemini for Google Workspace: Rest of world; Microsoft 365 Copilot: Rest of world. Ratings are the AI panel’s opinion, formed from public evidence: how scores are made.
Microsoft 365 Copilot leads six criteria — data use and training 7.0 to 3.2, integrations and knowledge 7.0 to 3.8, sovereignty 4.7 to 2.7, processing and models, admin and access and agent capabilities — and judges lean 6-0 on five, 5-0 with one tie on admin and access. Gemini for Google Workspace leads the seventh — pricing transparency, 5.5 to 2.0, 6-0 among judges — Starter, Standard and Plus are publicly priced at €6.80, €13.60 and €21.10 per user per month, while no captured page states a Copilot price. The genuine splits sit inside single columns: Copilot's sovereignty spans 4-6, the works council crediting the EU Data Boundary while the skeptic, head of IT and data protection officer cite Anthropic models outside it and the United States among storage locations; Gemini's widest spread, 4-6 on admin and access, turns on single sign-on, provisioning and audit logs, where the bench found no public information.
Choose Gemini for Google Workspace if
You need published prices for budget planning — Gemini for Google Workspace's Starter, Standard and Plus tiers are publicly priced at €6.80, €13.60 and €21.10 per user per month, and pricing transparency is the one criterion where judges lean its way, 6-0.
Your finance team requires the annual-commitment discount stated up front — the captured pages state a 16% annual-commitment saving at regular rates.
You need the offer's size limits visible before signing — the tier pages state a 300-user cap.
Your security review starts from documented controls — the tier pages document data loss prevention, context-aware access, Vault, eDiscovery and tiered endpoint management, and admin and access is one of the two criteria where the bench scores Gemini for Google Workspace highest.
Choose Microsoft 365 Copilot if
You need written no-training commitments — data use and training scored 7.0 to 3.2, with documented commitments that prompts, responses and Graph-accessed data are not used to train foundation models, a downloadable data protection addendum, and ISO 27001 and ISO 42001 certifications.
Your teams need grounded answers that cite their sources — integrations and knowledge scored 7.0 to 3.8, with a connectors API whose grounded answers store citations to their sources.
Your works council or data protection review hinges on an EU residency commitment — the works council judge credited the EU Data Boundary in the Product Terms since March 2024, though sovereignty scores span 4-6 across the panel.
You are deploying agents and want documented safeguards — agent capabilities scored 5.3 to 3.3, with jailbreak and prompt-injection classifiers documented; the captured pages give no public information on human approval before consequential actions.
You buy through negotiated enterprise agreements, so an unpublished list price is not a blocker — the panel does not weight pricing transparency in Microsoft 365 Copilot's verdicts.
Read this comparison as one judge. Each weighs the same scores by what they care about.
The Skeptic
Has read "European AI" on a wrapper that sends every prompt to a US model, "agents" that are saved prompts, and "we never train on your data" with no word on the model provider behind it. Asks which model answers, where it runs, what it may do unsupervised, and what a thousand seats cost.
Gemini for Google Workspace
Microsoft 365 Copilot
This judge's pick
Criterion by criterion
Data use, training & retention
Gemini for Google Workspace
The pricing page states "your company data is not used to train models" — one sentence, with no retention periods for chats or files, nothing on logs, and no zero-retention terms with the model providers behind the product. The privacy notice references a Service Data Addendum, which is a pointer rather than the commitments themselves.
Microsoft 365 Copilot
The Copilot privacy documentation commits that prompts, responses and Graph-accessed data are not used to train foundation models, is backed by a downloadable data protection addendum, and describes abuse monitoring with its human review opted out, plus ISO 27001 and ISO 42001 coverage. The captured pages give different figures on training, though: the general privacy statement says Microsoft "may use your data to develop and train our AI models". Retention is described only as minimum-time policies per log type with user-initiated deletion of activity history; I found no public information on stated retention periods, admin-controlled deletion, or zero-retention terms with OpenAI or Anthropic.
Models & processing location
Gemini for Google Workspace
Gemini is named as the assistant in Gmail, Docs and Meet, but the captured pages never state where inference runs or through which provider. "Enterprise data regions" appears as a bare feature name at the Enterprise tier, with no stated EU option and no residency commitment.
Microsoft 365 Copilot
OpenAI and Anthropic are named as the model providers, and EU tenants' Copilot traffic stays within the EU Data Boundary, a commitment written into the Product Terms since March 2024. But Anthropic's models are "currently excluded from the EU Data Boundary", so EU processing is not enforced across the model lineup. I found no public information on choosing or excluding a provider, bring-your-own-key, or on-premises deployment.
Admin, identity & access controls
Gemini for Google Workspace
Real enterprise controls are listed by name — data loss prevention, Vault "to retain, archive, and search data", eDiscovery, context-aware access, endpoint-management tiers and Cloud Identity Premium, mostly gated to Plus or Enterprise. We found no public information on single sign-on, provisioning, group-level permissions over which AI features each group may use, or exportable audit logs.
Microsoft 365 Copilot
Grounding only surfaces content a user has view permissions for and the Semantic Index honors the identity-based access boundary — genuine, documented permission inheritance — and admins can decide which agents are allowed and switch Copilot off per app, with Purview and Content search to inspect stored prompts and responses. I found no public information on SSO or SCIM provisioning, group-level control over models and connectors, or exportable audit logs and usage analytics.
Integrations, connectors & knowledge
Gemini for Google Workspace
The assistant lives inside Google's own Gmail, Drive and Docs, with Office-file interoperability, a migration tool, a telephony add-on and AppSheet's "advanced integrations". We found no public information on connectors to external systems, sync behaviour, a documented API, or citations on grounded answers.
Microsoft 365 Copilot
There is a real connector story: a documented Copilot connectors API with build steps, semantic schema labels and external item ingestion, natural-language search over ingested content, plus Graph REST APIs, SDKs, a mail API, Teams bots and change notifications for embedding elsewhere. Grounded responses are stored with citations to their sources. I found no public information on connector sync frequency or support for open protocols such as MCP.
Agent capabilities & guardrails
Gemini for Google Workspace
Everything about agents is one tagline — "Workspace Studio: Automate your workday with intelligent AI agents" — plus a paid add-on promising "more Workspace Studio automations". Not one word on what an agent may do unsupervised, approvals before consequential actions, run logs, or stated limits.
Microsoft 365 Copilot
Copilot Studio builds agents with pre-built tools on a visual canvas, the Agents Toolkit deploys them across Copilot, Teams, web and third-party channels, admins gate which agents are allowed, and jailbreak and cross-prompt-injection classifiers plus content harm filters are documented. Creating and testing agents is described, but I found no public information on run logs, human approval before consequential actions, triggers and schedules, or a stated limit on what agents should not be trusted with — I would not run these unsupervised on this evidence.
European sovereignty
Gemini for Google Workspace
The sourcing places the vendor at Google LLC, Mountain View, USA; a product-scoped privacy notice with a GDPR section exists, but hosting location is not confirmed on the vendor's own captured pages, no EU contracting entity appears, and the processor analysis flags US Cloud Act exposure with no stated safeguard. "Enterprise data regions" remains a feature name without a stated region.
Microsoft 365 Copilot
The contracting vendor is Microsoft Corporation of Redmond, and the EU Data Boundary keeps EU tenants' Copilot traffic in the EU — yet Anthropic's models are excluded from that boundary and the privacy statement names the United States and other jurisdictions among storage locations. OpenAI and Anthropic are named as subprocessors and a downloadable DPA exists, but the stated cross-border safeguard is the EU-U.S. Data Privacy Framework rather than European processing. I found no public information on an EU contracting entity or on the locations of the subprocessors.
Pricing transparency
Gemini for Google Workspace
Three tiers are priced publicly in euros — Starter €3.40, Standard €6.80 and Plus €10.55 per user per month at the discounted figures, with regular prices shown, a 16% annual-commitment saving, clear user caps and honest intro-offer terms. But add-ons are "sold separately", and we found no public information on the cost of the Enterprise tier, the AI Expanded Access add-on or support upgrades.
Microsoft 365 Copilot
The licensing pages document which plans are eligible (Office 365 E1 through E5 and F3), that the SMB add-on requires an annual commitment and supports up to 300 users per tenant, and that education is bought through EES or CSP — but no price figure appears anywhere I read. I found no public information on a price per seat, usage limits, or enterprise terms; the cost of a thousand seats is not computable from these pages.
Sovereignty, side by side
Dimension
Gemini for Google Workspace
Microsoft 365 Copilot
Legal entity
Not determined
Not determined
Ownership
Not determined
Not determined
Data residency
Not determined
Not determined
Subprocessors
US CLOUD Act reach
Not determined
Questions about Gemini for Google Workspace and Microsoft 365 Copilot
Which is better, Gemini for Google Workspace or Microsoft 365 Copilot?
As of 28 Oct 2026, the panel rates Microsoft 365 Copilot higher: 3/5 against 2/5. Weighted by what each judge cares about, 0 of the 6 judges pick Gemini for Google Workspace and 6 pick Microsoft 365 Copilot. Which one fits depends on the criteria that matter to you; the table on this page shows both side by side, and each judge’s reading has its own page. Both were scored by the same AI bench under the same rubric, from public evidence only, as the methodology describes.
Is Gemini for Google Workspace or Microsoft 365 Copilot European?
Gemini for Google Workspace is not European by provenance (Rest of world). Microsoft 365 Copilot is not European by provenance (Rest of world). Provenance is read from each company’s own legal pages: who builds it and who owns it.