foundation models
How to Design a Foundation Model Fallback Chain That Maintains Per-Tenant SLA Guarantees When Primary Model Providers Enforce Unexpected Capacity Throttling
It happened to three of the largest AI-native SaaS companies in early 2026 within the same quarter: a primary foundation model provider quietly enforced stricter capacity throttling during peak hours, and suddenly thousands of enterprise tenants started receiving 429 Too Many Requests errors. Support tickets flooded in. SLA breach notifications