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 Data Protection Officer
Signs the DPA and gets asked where a prompt goes. Wants every model provider named as a subprocessor with its region, training excluded for all of them, retention the company controls, and an EU-only switch that also covers agents and connectors — not just the chat window.
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 "Chat with AI in Gemini, your company data is not used to train models", but I found no public information on retention periods for chats or files, on no-training or zero-data-retention commitments with the model provider, or on abuse-monitoring logs. The privacy notice points to a Service Data Addendum and a GDPR section, but the captured pages do not state its terms, so the training exclusion rests on a marketing line rather than a documented contract.
Microsoft 365 Copilot
Prompts, responses and Graph data are stated not to train foundation models, abuse monitoring with human review is opted out, a downloadable Data Protection Addendum applies, and users can delete their Copilot history via the My Account portal. But the privacy statement separately says Microsoft "may use your data to develop and train our AI models" — the captured pages give different statements on training use — and we found no public information on no-training or zero-data-retention commitments with the named model providers OpenAI and Anthropic, or on concrete retention periods the company controls.
Models & processing location
Gemini for Google Workspace
Gemini is the named model family behind the assistant, but I found no public information on where inference runs or any EU-only processing option. "Enterprise data regions" appears as an Enterprise-tier feature on the pricing page, though the captured pages do not say it covers model processing, agents or connectors.
Microsoft 365 Copilot
OpenAI and Anthropic are named as the model providers behind Copilot, and EU customers' traffic is stated to stay within the EU Data Boundary for storage and LLM processing, with Bing named for web search. But models provided by Anthropic are excluded from the EU Data Boundary, Multi-Geo customers are outside it entirely, and we found no public information on an admin-enforced EU-only option across all models, provider exclusion, bring-your-own-key or on-premises deployment.
Admin, identity & access controls
Gemini for Google Workspace
The pricing page documents real governance levers — data loss prevention, context-aware access, Vault with eDiscovery, tiered endpoint management and Cloud Identity Premium, most gated to Enterprise or Plus. I found no public information on SSO and SCIM provisioning, group-level control over which models or agents each team may use, or exportable audit logs and their scope, which keeps this short of a regulated-company control set.
Microsoft 365 Copilot
Retrieval inherits source-system permissions — Copilot only surfaces data the user has view rights to and the Semantic Index honors the identity-based access boundary — alongside tenant isolation through Entra authorization and role-based access control, admin control over which agents are allowed, Purview information-protection labels honored, and PowerShell-based user, group and usage reporting. We found no public information on SSO with SCIM provisioning, group-scoped permissions for models and connectors, or exportable audit logs on the captured pages.
Integrations, connectors & knowledge
Gemini for Google Workspace
Gemini is embedded in Gmail, Docs and Meet, with Office file interoperability, a migration tool and AppSheet marketed for "advanced integrations" across the suite. I found no public information on a connector library, sync behaviour or completeness, a documented API, or how the assistant cites the sources it answers from.
Microsoft 365 Copilot
A documented connectors API with a five-step build process brings external data into Microsoft Graph, Graph REST APIs and SDKs cover mail, Teams bots and change notifications, and stored interactions include citations to the sources used to ground responses. We found no public information on the catalog of ready-made connectors, sync frequency and completeness, or support for open protocols such as MCP.
Agent capabilities & guardrails
Gemini for Google Workspace
Workspace Studio promises to "Automate your workday with intelligent AI agents" on every plan, and an AI Expanded Access add-on sells more automations, image and video generation and speech translation. The captured pages document nothing about what an agent may do in other systems, whether human approval can be required, where run logs live, or any stated limits — marketing names agents, evidence does not describe them.
Microsoft 365 Copilot
Agents are built without code on the Copilot Studio visual canvas or in Visual Studio Code, deploy across Copilot, Teams, web and third-party channels, and ship with jailbreak and cross-prompt injection classifiers, content harm filters, protected-material detection and admin control over which agents are allowed. We found no public information on human approval before consequential actions, run logs, evaluation against test sets before release, or a vendor statement of what agents must not be trusted with.
European sovereignty
Gemini for Google Workspace
The vendor is independently confirmed as Google LLC of Mountain View, USA, and the privacy review names Google as processor of customer data under US Cloud Act exposure with no EU contracting entity stated. I found no public information confirming EU hosting, and no subprocessor list naming the model provider with its region; a comprehensive privacy notice with a GDPR section is the only positive documented, which is marginally above nothing.
Microsoft 365 Copilot
The EU Data Boundary commits to storing and processing Microsoft 365 customer data inside the EU and EFTA, OpenAI and Anthropic are named as model subprocessors, and a Data Protection Addendum is downloadable — but Anthropic's models are excluded from that boundary, Multi-Geo customers are outside it entirely, and transfers out continue in "limited circumstances". The contracting entity is a US company and we found no public information on a European contracting entity or European model processing for every feature.
Pricing transparency
Gemini for Google Workspace
Three tiers carry exact euro prices per user per month (Starter "€6.80", Standard "€13.60", Plus "€21.10") with storage, participant and daily audio-overview limits, a stated 16% annual-commitment saving, introductory-offer terms and the 300-user cap for non-Enterprise plans. However, add-ons including AI Expanded Access are only "sold separately" with no prices, the Enterprise tier carries no public price in the captures, and no overage or AI-usage rates are stated.
Microsoft 365 Copilot
The licensing structure is public — an add-on to eligible Office 365 E5, E3, E1 and F3 plans, an annual-commitment Business option capped at 300 users, plus education, government and small-business channels. But we found no public price figures on the captured licensing pages, so a company cannot compute even a starting annual cost from them.
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.