Infrastructure Architecture
AI Provider Model Architecture
How providers serve millions of concurrent users from the cloud
👥
Users
Apps, browsers, APIs
→
🌐
Anycast DNS
Nearest region routing
→
🔑
Gateway
Auth + rate limit
→
⚖️
Load Balancer
Round-robin instances
US-West
Oregon — West Coast + APAC
Inst 1
8×A100
Inst 2
8×A100
US-East
Virginia — Primary region
Inst 1
8×A100
Inst 2
8×A100
Europe
Frankfurt — EU data residency
Inst 1
8×A100
Inst 2
8×A100
Request
Queue
→
Throttle
→
Inference
(KV Cache)
→
Response
📊
Horizontal
N instances/region
🧩
Sharding
Layers across GPUs
⚡
Pipeline
Queue → Infer → Respond
🌍
Regions
Multi-region routing
Click any component for detailed explanation