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Gemini Enterprise Agent Platform vs Microsoft Agent 365

Gemini Enterprise Agent Platform

Google Cloud platform to build, deploy, govern, and optimize AI agents

Microsoft Agent 365

Microsoft 365 control plane to discover, manage, govern, and secure AI agents

Short answer

Gemini Enterprise Agent Platform is Google Cloud’s platform to build, deploy, and govern agents, while Microsoft Agent 365 is a Microsoft 365 control plane for agents built and run elsewhere.⁠Source 1, Source 2, Source 3, Source 4 Agent Platform’s registry is per project and its runtime is billed by use; Agent 365 has an organization-wide registry and is licensed per user.⁠Source 5, Source 6, Source 7, Source 8

By Blocks.ai teamLast checked

Where each one sits

Six layers of running AI agents at a company, and what each product’s own public sources say it covers.

These aren’t the same kind of product

Where they overlap
Both keep a registry of agents, give agents their own identities, control which tools agents can reach, and log agent activity.⁠Source 2, Source 7, Source 9, Source 10, Source 11, Source 12, Source 13
Where they differ
Agent Platform is also where agents are built and run, with models from Model Garden; the Agent 365 SDK doesn’t build, host, or run agents, or select models.⁠Source 1, Source 4, Source 11, Source 14
Running both
Microsoft says the Agent 365 SDK works with agents hosted on Google Cloud, and Google says Agent Registry can list agents hosted outside Google Cloud by manual registration.⁠Source 3, Source 15
Public sources · checked 2 October 2026
  • Offered
  • Preview
  • Not included
  • Not publicly documented

Gemini Enterprise Agent Platform

  • Build agents: OfferedAgent Studio low-code canvas⁠Source 1
  • Host and run agents: OfferedAgent Runtime⁠Source 11
  • Identity and access: OfferedSPIFFE-based Agent Identity⁠Source 10
  • Registry and governance: OfferedAgent Registry⁠Source 9
  • Traffic between agents, tools, and models: OfferedAgent Gateway⁠Source 11
  • Agents across organizations: OfferedGateway calls to outside agents⁠Source 11

Microsoft Agent 365

  • Build agents: Not includedUse your chosen framework⁠Source 3
  • Host and run agents: Not includedYou host your agent⁠Source 4
  • Identity and access: OfferedEntra Agent ID⁠Source 12
  • Registry and governance: OfferedAgent registry in admin center⁠Source 7
  • Traffic between agents, tools, and models: PreviewTooling Gateway for MCP servers⁠Source 16
  • Agents across organizations: Not publicly documented

At a glance

TopicGemini Enterprise Agent PlatformMicrosoft Agent 365
Builds and runs agentsTeams can build agents with Agent Studio or the Agent Development Kit and run them on Agent Runtime.⁠Source 1, Source 11Microsoft says the Agent 365 SDK doesn’t build, host, or run the agent.⁠Source 4
Where governed agents runAgent Gateway can govern traffic for Agent Runtime and the Gemini Enterprise app.⁠Source 11 Agents hosted elsewhere can be added to the registry by manual registration.⁠Source 15Wherever the agent already runs, such as Azure, AWS, Google Cloud, or on premises.⁠Source 4 Premium capabilities may vary by agent type and platform.⁠Source 8
Agent identityAgents on supported runtimes, such as Agent Runtime, can each have a SPIFFE-based Agent Identity; on Agent Runtime it is opt-in.⁠Source 10, Source 17Agent identities live in Microsoft Entra Agent ID, though the inventory also lists agents without one.⁠Source 12, Source 18
Pricing modelAgent Registry is free; skill scanning is billed from January 2027.⁠Source 19 Agent Gateway egress costs $0.085 per 15,000 requests, and Agent Runtime compute is billed per vCPU-hour.⁠Source 6Lists at $15 per user per month, or in Microsoft 365 E7.⁠Source 8 Basic identity and inventory come with Microsoft Cloud subscriptions; enterprise customers need Microsoft 365 E5, or E3 with the Defender and Purview suites.⁠Source 8
Generally availableAgent Registry and Agent Gateway since 18 June 2026.⁠Source 20Since 1 May 2026, for the Commercial segment.⁠Source 21

What each one is

Gemini Enterprise Agent Platform

Gemini Enterprise Agent Platform is Google Cloud’s platform to build, deploy, and govern agents, described as an evolution of Vertex AI.⁠Source 1 Agent Registry catalogs agents; Agent Identity can give agents on supported runtimes an identity; and Agent Gateway applies policy checks to agent traffic.⁠Source 9, Source 10, Source 11

Microsoft Agent 365

Microsoft Agent 365 is a Microsoft 365 service that provides a centralized control plane to discover, manage, govern, and secure AI agents.⁠Source 2 It is administered across several Microsoft products: the agent registry in the Microsoft 365 admin center, Microsoft Entra, and Microsoft Purview.⁠Source 21

The differences that matter

  1. Building and running agents

    Gemini Enterprise Agent Platform

    Teams design agents in Agent Studio or build them with the Agent Development Kit; Agent Runtime can run them, billed by vCPU-hour and memory.⁠Source 1, Source 6

    Microsoft Agent 365

    Agent 365 governs agents built elsewhere, such as in your chosen framework or, for low-code, in Microsoft’s separate Copilot Studio.⁠Source 2, Source 3, Source 22

  2. How far each registry reaches

    Gemini Enterprise Agent Platform

    Agent Registry works per Google Cloud project; it can register agents on supported runtimes automatically, but agents in other projects or elsewhere need manual registration.⁠Source 5, Source 23, Source 24

    Microsoft Agent 365

    Agent 365 lists all agents available to an organization in one registry; agents built outside Microsoft 365 channels need additional steps to appear.⁠Source 7, Source 25

  3. Where policy is enforced

    Gemini Enterprise Agent Platform

    By default, Agent Gateway blocks an agent’s outbound connections without an IAM policy grant; Model Armor filters can scan prompts and tool responses.⁠Source 11

    Microsoft Agent 365

    Agent 365 uses Microsoft 365 and Entra controls: Conditional Access and permission grants on agent identities, policy templates, and an organization-wide block.⁠Source 12, Source 26, Source 27

    Google says Agent Gateway’s IAM access policies aren’t available for inbound calls; Microsoft says blocking a SharePoint or Microsoft Foundry agent only affects its availability in Microsoft Copilot Chat.⁠Source 11, Source 27

For security teams

What a security review asks, answered from each vendor’s public documentation.

TopicGemini Enterprise Agent PlatformMicrosoft Agent 365
Network exposureAgent Gateway’s ingress mode supports only Agent Runtime agents; outbound calls through it are checked against IAM access policy.⁠Source 11Notifications (preview) need a messaging endpoint that Agent 365 sends to; bring-your-own MCP servers (preview) need a publicly accessible endpoint.⁠Source 16, Source 28
IdentityA SPIFFE-based Agent Identity for agents on supported runtimes, generally available; the Agent Identity API is in preview.⁠Source 10, Source 20Agent identities are Microsoft Entra service principals, managed with Conditional Access and consent; the inventory also lists agents without one.⁠Source 12, Source 18
Access changes and revocationDeny rules override allow rules; deleting an agent leaves IAM bindings naming it, which must be removed by hand.⁠Source 10, Source 29Block agents organization-wide (only in Copilot Chat for SharePoint and Foundry agents), or disable a blueprint’s agents in one operation.⁠Source 12, Source 27
Audit trailRegistry admin changes are logged; other calls need Data Access logs on.⁠Source 30, Source 31 Agent Identity logs agent actions.⁠Source 10Activity from supported agents appears in Defender, Purview, and the admin center; Agent 365 keeps it 30 days.⁠Source 3, Source 13
ComplianceListed in scope for ISO 27001, SOC 1, 2, and 3, and PCI DSS, and in Google Cloud’s HIPAA BAA.⁠Source 32, Source 33Not yet a Core Online Service.⁠Source 13 Microsoft says it meets its assessor’s FedRAMP High review; authorization is pending (announced).⁠Source 2

Full comparison

18 criteria in five groups. Every cell links to its source, or says no public source answers it.

Gemini Enterprise Agent Platform and Microsoft Agent 365 compared on 18 criteria
Gemini Enterprise Agent PlatformMicrosoft Agent 365
What it is
What it is and who it’s forGoogle Cloud platform to build, deploy, govern, and optimize AI agents, described as an evolution of Vertex AI, for developers and technical teams.⁠Source 1, Source 34Microsoft 365 service that provides a centralized control plane to discover, manage, govern, and secure AI agents, for IT and security leaders.⁠Source 2, Source 25
MaturityLaunched 22 April 2026.⁠Source 35 Agent Registry and Agent Gateway generally available since 18 June 2026.⁠Source 20 Agent Identity is generally available; its API is in preview.⁠Source 20Generally available since 1 May 2026 for the Commercial segment.⁠Source 21 Registry sync and multi-tenant management are in preview.⁠Source 36, Source 37
Control
Agent registry and discoveryAgent Registry catalogs agents, MCP servers, and tools in a Google Cloud project.⁠Source 5, Source 9 Agents on supported Google Cloud runtimes can be registered automatically.⁠Source 23Agent registry in the Microsoft 365 admin center: one inventory of Microsoft and non-Microsoft agents, including agents without an Entra agent identity.⁠Source 7, Source 18
Identity and access controlAgents on supported runtimes can have SPIFFE-based Agent Identity.⁠Source 10 Policies link it to approved tools; other outbound gateway calls are blocked by default.⁠Source 11Agent identities live in Microsoft Entra Agent ID, managed with Conditional Access, permission grants, and consent.⁠Source 12 The inventory also lists agents without one.⁠Source 18
Ownership, policy, and revocationAllow and deny access policies (deny overrides allow), enforce and dry-run modes, and Model Armor filters.⁠Source 11, Source 29 An agent owner field is not publicly documented.A required sponsor per agent identity, organization-wide block, 30-day soft delete, and owner reassignment for Agent Builder and Copilot Studio agents.⁠Source 12, Source 27
Audit log and observabilityRegistry admin changes get Admin Activity audit logs; other calls need Data Access logs turned on.⁠Source 30, Source 31 Gateway traffic goes to Cloud Logging.⁠Source 11Supported agents’ spans show in Defender, Purview, and the admin center; Agent 365 keeps them 30 days.⁠Source 3, Source 13 Purview’s agent audit logs need E7 or Agent 365.⁠Source 2
Connection
How agents connectAgent Gateway can govern calls into and out of Agent Runtime, and out of the Gemini Enterprise app.⁠Source 11 Outside agents can be registered by URL or agent card.⁠Source 15The SDK works with agents on Azure, AWS, Google Cloud, or on premises.⁠Source 3 Notifications, in preview, need a messaging endpoint URL that Agent 365 sends to.⁠Source 28
Agents across organizationsAgent Runtime agents can call agents anywhere through Agent Gateway.⁠Source 11 A2A agents on Agent Runtime, in preview, can accept calls from identities granted access.⁠Source 17, Source 38, Source 39Partners’ published agents can be added to your tenant.⁠Source 12, Source 40 Microsoft’s separate Foundry and standard-harness Copilot Studio agents can call external A2A agents.⁠Source 41, Source 42
Protocol supportAgent Registry catalogs MCP servers and A2A agents; Agent Gateway carries MCP and A2A traffic.⁠Source 11, Source 24, Source 43 A2A agents on Agent Runtime and ADK’s A2A support are in preview.⁠Source 38, Source 44Bring-your-own MCP servers are in preview.⁠Source 16 A2A is documented for Microsoft’s separate Foundry and standard-harness Copilot Studio agents, not Agent 365.⁠Source 41, Source 42
Frameworks, models, and clouds supportedAgent Development Kit or any open-source framework, with Gemini or other Model Garden models.⁠Source 14 Agents hosted outside Google Cloud can be registered manually.⁠Source 15Microsoft and third-party agents.⁠Source 2 The SDK names frameworks such as LangChain, CrewAI, and the OpenAI Agents SDK, and agents keep their own host.⁠Source 4, Source 36
Operations
Deployment options and data residencyAgent Gateway is managed and regional.⁠Source 45 Agent data at rest stays in a supported location you pick.⁠Source 46 Self-hosting the registry or gateway: not publicly documented.Honors the EU Data Boundary; its observability service stores customer content in the tenant’s default geography.⁠Source 13 Self-hosting it is not publicly documented.
Compliance attestationsGoogle lists Agent Platform in scope for ISO 27001, 27017, and 27018, SOC 1, 2, and 3, and PCI DSS, and among products the Google Cloud HIPAA BAA includes.⁠Source 32, Source 33Not yet a Core Online Service.⁠Source 13 Microsoft says Agent 365 meets all FedRAMP High controls its assessor reviewed; final authorization is pending (announced).⁠Source 2
Support and SLAGoogle Cloud support packages, including 24/7 coverage.⁠Source 47 An uptime SLA naming Agent Registry, Gateway, Identity, or Runtime is not publicly documented.No specific SLA for the Frontier preview program.⁠Source 48 An SLA or support plan specific to the generally available service is not publicly documented.
Time and effort to get runningA Google Cloud project with the Agent Registry API enabled, plus the Identity-Aware Proxy API for gateway policy.⁠Source 5 Google recommends dry-run mode in staging.⁠Source 29Enterprise customers need Microsoft 365 E5, or E3 with Defender Suite and Purview Suite, and at least one user with an Agent 365 license.⁠Source 8, Source 21
Pricing model and public pricesAgent Registry is free; skill scanning is billed from January 2027.⁠Source 19 Agent Gateway egress costs $0.085 per 15,000 requests.⁠Source 6Per user, not per agent: lists at $15 per user per month standalone, or in Microsoft 365 E7.⁠Source 8 Microsoft Cloud subscriptions get foundational capabilities free.⁠Source 8
Building
Agent building toolsAgent Studio (low-code canvas), the open-source Agent Development Kit, and Agent Garden prebuilt agents and templates.⁠Source 1, Source 14 A Managed Agents API is in preview.⁠Source 1Microsoft says the Agent 365 SDK isn’t an agent-building framework.⁠Source 3 For low-code building, the docs point to Microsoft’s separate Copilot Studio.⁠Source 22
Model accessMore than 200 models through Model Garden, including Gemini, third-party models such as Anthropic’s Claude, and open-source models.⁠Source 1, Source 35Microsoft says the SDK doesn’t call or select models; the agent keeps making its own model calls.⁠Source 3, Source 4
Integrations and ecosystemAgents in Agent Registry can be made available in Google’s Gemini Enterprise app.⁠Source 45 Google’s own remote MCP servers are registered automatically.⁠Source 43Launched with preintegrated partner agents and agents built on partner agent factories.⁠Source 40, Source 49 Work IQ MCP tools for Mail, Calendar, Teams, and more are in preview.⁠Source 50

Which to choose

Choose Gemini Enterprise Agent Platform if

  • You want to build, run, and govern agents on one platform, with Agent Studio and the open-source Agent Development Kit.⁠Source 1, Source 14
  • Your agents run on Google Cloud, where agents on supported runtimes, such as Google Kubernetes Engine, can be registered automatically.⁠Source 23, Source 24
  • You want policy enforced at a gateway, with outbound connections blocked by default and Model Armor scanning prompts and tool responses.⁠Source 11
  • You want a wide choice of models: Google says Model Garden offers more than 200, including Anthropic’s Claude.⁠Source 35

Choose Microsoft Agent 365 if

  • You build agents in Microsoft’s separate Copilot Studio or Microsoft Foundry, which Microsoft says offer built-in integration for some scenarios.⁠Source 36, Source 51
  • You want agent identities in Entra, managed with the same Conditional Access, consent, and lifecycle controls as the rest of your tenant.⁠Source 12
  • Your agents run across clouds or on premises and should stay there: the Agent 365 SDK doesn’t change where they run.⁠Source 3
  • You want named accountability: each agent identity needs a sponsor, and admins can block or delete agents without owners.⁠Source 7, Source 12

Questions buyers ask

Is Gemini Enterprise Agent Platform the same as Gemini Enterprise?

Agent Platform is Google Cloud’s platform to build, deploy, govern, and optimize agents.⁠Source 1 Google’s Gemini Enterprise app is separate: agents in Agent Registry can be associated with it to make them available to its end users.⁠Source 45

How is each one priced?

Agent Registry is free; skill scanning is billed from January 2027.⁠Source 19 Agent Gateway egress costs $0.085 per 15,000 requests; Agent Runtime compute, $0.085 per vCPU-hour.⁠Source 6 Agent 365 lists at $15 per user per month, or in Microsoft 365 E7, with no consumption-based costs yet.⁠Source 8

Do they support MCP and A2A?

Agent Registry and Agent Gateway handle MCP and A2A; Agent Runtime hosts A2A agents in preview.⁠Source 11, Source 24, Source 38, Source 43 Agent 365 controls tool access tenant-wide; registering your own MCP servers is in preview.⁠Source 2, Source 16 A2A is documented for Microsoft’s separate Foundry and standard-harness Copilot Studio agents, not Agent 365.⁠Source 41, Source 42

Can either one connect agents across organizations?

On Agent Runtime, agents can call agents anywhere through Agent Gateway, and A2A agents, in preview, accept calls from identities granted access.⁠Source 11, Source 17, Source 38, Source 39 Microsoft’s separate Foundry and standard-harness Copilot Studio agents can call A2A agents, and Foundry agents can accept calls from Entra identities granted access.⁠Source 41, Source 42, Source 53

How we compare

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We re-check every fact at least every 90 days. This page was last checked .

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Sources

60 public sources, each with the date we checked it. Every one opens in a new tab.

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