Blackmount Gateway is one drop-in API that sends each request to the best model for your application — comparable quality, far lower cost. No rewrites, no lock-in, full visibility into what every request costs and why.
The problem
Most teams pipe every request to a single premium model — and overpay on the easy ones, while having no clean way to prove quality when they switch.
The strongest model can cost 10–30× more per request than a smaller one that answers most prompts just as well.
Changing providers means re-testing quality by hand and hoping nothing regresses in production.
You can't see which requests cost what, or whether you're paying for quality you don't actually need.
The difference
How it works
Point your app at our OpenAI-compatible endpoint. One line — keep the rest of your code.
Every request is sent to the best model for that request, against the quality bar you set.
Your bill drops at comparable quality — and you can see exactly what each request cost and why.
lower cost at comparable quality — by routing each request instead of overpaying on every one.
Typical range; depends on your traffic mix and quality bar.
What you get
OpenAI-compatible API. Add it without changing how you build — and never get locked to one vendor again.
Routing is anchored to your own quality standards, so cheaper doesn't mean worse.
Per-request and per-conversation cost, with the routing decision behind each one — no more black-box bill.
The more it runs on your app, the sharper the routing — quality and savings compound over time.
Who's building it
Founded by Dr. Mehrdad Shirangi — Stanford PhD, former head of LLMOps (LLM Operations) at Cisco, and ex-Baker Hughes (autonomous systems, granted patent, $10M/quarter revenue line). Blackmount Gateway is the infrastructure we wished we'd had.
Get access
Tell us what you're building. We'll set you up with a private routing audit and early access.