Margin AI is a 1-line drop-in fix to slash your AI token spend by 50% and fix enterprise privacy problems. Why Margin AI? 1. 50%+ Savings: Intelligent down-routing + FAISS semantic caching. 2. Built-in Privacy: Auto-PII redaction across full conversation history. 3. Uptime: Intelligent provider failover & cascading. 4. 100+ LLMs: Support OpenAI, Groq, Aunthropic & more 5.. CFO Dashboard: Real-time ROI & governance analytics. Works with any SDK by changing one base_url. 100% Open Source.