Enterprise AI Gateway & Model Router
One control plane for every LLM call in the org — routing, cost, reliability and security in one place.
Role: Lead architect — routing model, data model, API contracts and delivery blueprint.
The problem
Applications often hard-code a single model and provider, which makes cost control, reliability, security and provider migration painful the moment something changes upstream. This gateway sits in front of every model call so routing, budgets and failover are handled once, centrally, instead of duplicated — or forgotten — in every application.
Business Context
Applications hard-coding a single model and provider made cost control, reliability and provider migration painful the moment anything changed upstream. Spire Digi Solution needed routing, budgets and failover handled once, centrally, instead of duplicated — or forgotten — in every application that called a model directly.
Architecture
Key capabilities
Cost-, latency- and quality-aware routing across hosted and open-source models
Per-tenant quotas, rate limits and token budgets
Automatic fallback chains when a provider degrades or fails
Response caching and PII / data-policy enforcement at the gateway
Live cost and latency dashboards with a full request audit trail
Security & Risk
A single hard-coded model integration is also a single point of failure and a single point of vendor lock-in. Centralizing every model call behind one gateway means security policy, budgets and failover are enforced once, consistently — not duplicated, drifted or forgotten in some application nobody remembers to update.
Outcome
One control plane where routing, cost and reliability decisions are made centrally, so a provider outage or price change is a configuration update, not an incident.
Challenges
Cost-, latency- and quality-aware routing across both hosted and open-source models had to make a routing decision per request cheaply enough not to become its own latency problem, while still enforcing per-tenant quotas, rate limits and token budgets, and falling back automatically the moment a provider degraded or failed.
Lessons Learned
Centralizing every model call behind one gateway turns a provider outage or price change into a configuration update instead of an incident. The value isn't only cost savings — it's that security policy and failover logic get enforced consistently, instead of drifting across applications nobody remembers to update.
Architecture pillars
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Technology
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