DigitalOcean
DigitalOcean published an architecture deep-dive on June 15, 2026 describing its Inference Router, built on the "Plano" control plane with Envoy, WASM filters, and async Rust components, and a ranking engine fed by live cost and latency data. Throughout the piece, Haiku is repeatedly used as the canonical cheap-model e The post argues against hardcoded intent-classifier routing in the application layer (calling it "double taxation") and instead positions DigitalOcean's router as a purpose-built, model-agnostic optimization layer that can route "easy" requests to Haiku-class models and keep frontier capacity for hard ones. For develop