ModelRouter is what happens when you put an AI gateway where it belongs — at the CDN layer, milliseconds from your users.
Jacob Rosenbacher
Founder, ModelRouter
Fastly → Roboflow (Employee #11, YC) → YeshID → ModelRouter
I spent years at Fastly selling and building on edge compute — running NYC enterprise accounts, speaking at the NY Web Performance Meetup, and attending Black Hat and DEF CON. I left to be employee #11 at Roboflow (YC W20) where I built the entire GTM function and grew revenue 4x. Then I co-founded YeshID, an identity governance startup, and built identitysprawl.com — a 14-page IAM market map with 422 vendors served entirely from Fastly Compute.
When I saw every company adopting AI APIs with zero security, zero routing, and zero cost control, I knew the edge was the answer. ModelRouter combines everything I've learned about edge infrastructure, enterprise security, and developer tools into one product.
Fastly (2x)
Roboflow #11
YeshID
Indiana University
Purpose-Built for the Edge
I built this on Fastly because I know the platform better than anyone. This isn't a wrapper around nginx. This is purpose-built for the edge.
WASM at the Edge
<1ms cold starts, no containers. Your AI gateway logic runs as compiled WebAssembly at every edge PoP.
100+ Global POPs
Your security scan runs closest to the user. Injection detection happens at the nearest Fastly PoP before the prompt ever leaves the region.
KV Store
Routing config, cache, audit logs — all at edge speed. Globally consistent reads, fire-and-forget writes with zero added latency.
Secret Store
API keys encrypted, never in code. Fastly's Secret Store provides AES-GCM encryption at rest with per-service isolation.
Fastly Compute runs WASM at the edge with sub-millisecond cold starts across 100+ global PoPs. No containers, no cold boot penalty, no servers to manage.
From Tool to Platform
Today
Route, secure, cache, log — for individual teams. A single-tenant AI gateway that gives any team instant control over their AI usage with zero integration cost.
Tomorrow
Multi-tenant provisioning — for platforms and enterprises. Programmatic tenant creation, isolated KV stores, per-tenant billing and audit trails. White-label deployments with custom domains.
End Game
The default AI gateway for Fastly customers. Every Fastly customer using AI APIs gets ModelRouter as a first-party product — routing, security, caching, and compliance built into the CDN layer.
ModelRouter is designed to become a Fastly product. The architecture already uses Fastly-native primitives: Compute for logic, KV Store for state, Secret Store for keys, SimpleCache for performance.