"Why not just use Google Gemini Enterprise?"
Use it. We route through Vertex.
Gemini 3 is the strongest multimodal model on the market. Workspace Studio builds agents in minutes inside Google Workspace. Vertex AI gives you HIPAA BAA and zero data retention. We use all three. The question is whether you want a Workspace-bound chat layer or a multi-tenant vertical application that integrates Epic FHIR, PeopleXD, Workday, and Microsoft 365 as well as Google Workspace.
We use every Google AI product.
Here's where each one shines.
Gemini 3
Strongest multimodal understanding and agentic capabilities on the market today. We route through Vertex AI for production inference.
Vertex AI
HIPAA BAA, zero data retention, customer-managed encryption keys. The only place we route healthcare workloads (DermGEIST).
Workspace Studio
No-code agent builder for Google Workspace. 20M+ tasks completed by alpha customers in 30 days. Strong fit for individual productivity inside Workspace.
Gemini Enterprise
Agentspace platform for building autonomous agents. Pre-built agents: Deep Research, Data Insights, Idea Generation. A2A protocol with 100K+ partners.
The further you go from the Workspace ecosystem.
Gemini Enterprise is strongest within Google's ecosystem. Organizations on Microsoft 365, PeopleXD, Epic, or Workday get less native integration depth. Gemini Enterprise excels at productivity within Workspace; it does not provide structured healthcare talent management with Epic FHIR integration, EU pay transparency compliance, or surgical decision support.
| Capability | Gemini Enterprise / Workspace Studio | GEIST |
|---|---|---|
| Production vertical applications | Workspace Studio builds agents in minutes; partner agents (HCA, Harvey) | TalentGEIST, PayGEIST, DermGEIST, AgentGEIST, LearnGEIST ship as deployable applications |
| Beyond the Google ecosystem | Strongest inside Workspace; thinner integration outside Google | 24 production integrations with non-Google systems-of-record (PeopleXD, Epic FHIR, Workday, Salesforce, M365, Slack, SharePoint…) |
| Multitenant data isolation | Organization-level isolation; you architect tenant scopes | Platform → Vertical → Instance → Tenant → User scope hierarchy with row-level security |
| Healthcare verticals | HCA nurse handoff is a partner solution; Vertex AI offers HIPAA BAA | DermGEIST surgical decision support shipped today; TalentGEIST clinical talent management with Epic FHIR |
| Vertical playbooks pre-loaded | Pre-built agents (Deep Research, Data Insights, Idea Generation) | 6 platform playbooks; AI Operating Model workstreams across 7 domains; 13,720 ROI opportunities; 2,017 APQC processes; 4,769 BOD benchmarks |
| Customer-controlled deployment | Google infrastructure | Customer GCP project, Azure tenant, Hetzner, on-premise, or air-gapped |
Verified in the GEIST codebase and competitive analysis, March 2026.
Workspace Studio agents are great.
An application is a different problem.
An HR director needs a talent management system with dashboards, reports, and workflows — not a chat agent. GEIST ships the system; Vertex Gemini powers the AI inside it.
Gemini Enterprise + custom agents
~$400K–700K Year 1
Gemini Enterprise licenses, custom agent development ($100–200K), non-Google system integration ($200–400K), ongoing maintenance.
Workspace agents with some enterprise data access. No structured vertical application.
Workspace Studio + custom build
~$1.0M Year 1
Build a multi-user application around Workspace Studio agents — database, sync, audit, multitenancy, compliance.
Custom application tied to the Google ecosystem.
GEIST
Weeks to deploy
Pre-built playbooks, 24 integrations, multitenancy and compliance baked in. We route through Vertex AI for HIPAA workloads via the multi-provider gateway.
Production vertical application running on Vertex Gemini or your model of choice.
Year 1 totals; figures are estimates from internal cost analysis, not commitments.
Vertex AI is our HIPAA backbone.
Every healthcare workload in GEIST routes through Vertex AI under BAA — DermGEIST surgical decision support, TalentGEIST clinical talent management, anything touching PHI. Vertex's zero-data-retention guarantee, EU regional residency, and customer-managed encryption keys are the foundation of our HIPAA posture.
For non-healthcare workloads, GEIST routes between Vertex Gemini, Anthropic, Azure OpenAI, the public Gemini API, and local models. You can pin different models per tenant or per workflow — and we meter every call so you get one transparent invoice instead of juggling separate provider bills.
Where GEIST and Google sit in the stack
- →GEIST = the vertical application (HR, pay, clinical, learning)
- →Vertex AI = HIPAA-compliant inference for healthcare workloads
- →Gemini 3 = the model GEIST routes to for multimodal and agentic tasks
- →Workspace Studio = individual Workspace productivity, complementary
- →Gemini Enterprise = Workspace-bound agent platform, complementary
Verified in the GEIST AI gateway, March 2026.
What deployment actually looks like.
Dermatology · Surgical AI
Wallderm
DermGEIST surgical decision support running on Vertex AI under BAA. Wound assessment, ranked closure recommendations, voice-first OR workflow.
Want to see GEIST routing Vertex Gemini for your team?
30-minute architecture review. We map a vertical workflow from your business onto a GEIST playbook running on Vertex AI or your model of choice — with HIPAA BAA where you need it.