Case 10 · Cross-Border SaaS Triple-Gateway Routing · Per-Token Cost -38% · 100% Data Residency Compliance¶

TL;DR: Cross-Border SaaS Triple-Gateway Routing · Per-Token Cost -38% · 100% Data Residency Compliance. Direction: Multi-Model Routing. Scale: US / EU / CN user base. Hard KPI: per-token cost -38%, user latency -20%, 100% residency compliance. Tech: triple gateway (OpenAI US, Anthropic EU, AW36 CN on-prem), sensitivity tiering, cost budget. My role: gateway architecture, routing strategy, cost model. Client name anonymized under NDA.

• Direction: Multi-Model Routing
• Industry: cross-border-SaaS
• Scale: US / EU / CN user base
• Hard KPI: per-token cost -38%, user latency -20%, 100% residency compliance

Problem¶

Cross-border SaaS users span US / EU / CN with different compliance (GDPR / data residency); routing everything through one API is expensive and non-compliant.

Solution¶

Triple gateway (OpenAI US / Anthropic EU / AW36 CN on-prem), sensitivity tiering, cost budget, data-residency compliance.

Tech Stack¶

triple gateway (OpenAI US, Anthropic EU, AW36 CN on-prem), sensitivity tiering, cost budget

Result (Hard KPIs)¶

per-token cost -38%, user latency -20%, 100% residency compliance

My Role¶

gateway architecture, routing strategy, cost model

Related¶

• Full 20-case portfolio · Direction · Multi-Model Routing
• PDF one-pager
• 中文原页

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Client name anonymized · KPIs verified · Real client name disclosable under NDA.