Routing requests across multiple model providers sounds simple until you’re in production. Latency spikes, cost overruns, and provider outages don’t announce themselves — your router has to handle them gracefully.
Start with your SLA
Before configuring routes, define what “good enough” means for each workflow:
- Latency: What’s the p95 threshold before user experience degrades?
- Cost: What’s the monthly budget per team or feature?
- Quality: Can you accept a cheaper model for low-stakes requests?
Document these upfront. They drive every routing decision.
Failover patterns that work
The most reliable setups use a primary + fallback chain rather than round-robin across providers.
- Route to your preferred model under normal conditions.
- On timeout or error, fail over to a secondary provider.
- Log every failover for review — patterns reveal systemic issues.
AISaaS handles this automatically when you set thresholds in the console.
Cost governance
Token spend can spiral without guardrails. Set per-workflow caps and alert thresholds at 80% of budget. Teams that do this catch anomalies before finance does.
Next steps
Open the Routing tab in any workflow and configure your first failover chain. Start with one production workflow, measure for a week, then expand.