Production Multi-Agent System Architecture
Content Generation Platform on Google Cloud
Layer 1
API Gateway & Entry Point
API Gateway
Request handling
$5-15/mo
Layer 2
Orchestration & Coordination
Supervisor Agent
Workflow coordination
$10-25/mo
Cloud Tasks
Async orchestration
$0-5/mo
Layer 3
Specialized AI Agents
Research Agent
Information gathering
$15-30/mo
Writing Agent
Content creation
$20-40/mo
Editing Agent
Quality assurance
$10-20/mo
Layer 4
AI Intelligence & Data Management
Vertex AI
Gemini models
$50-150/mo
Firestore
State management
$5-15/mo
Cloud Storage
Artifact storage
$5-10/mo
Request Processing Flow
1. User Request
→
2. API Gateway
→
3. Supervisor Agent
→
4. Task Queue
→
5. Research Agent
→
6. Writing Agent
→
7. Editing Agent
→
8. Response
15-30s
Average Latency
$0.15-0.30
Cost Per Execution
50-100
Concurrent Workflows
99%+
Success Rate
Architecture Layers
API & Gateway Layer
Orchestration Layer
Agent Processing Layer
Intelligence & Data Layer