BitRouter vs OpenRouter
Two takes on the same idea. OpenRouter went wide on the catalog; BitRouter went open source, took no cut, and taught the router to learn your workload. An honest side-by-side.
OpenRouter built this category. One key, hundreds of models, a catalog nobody has matched — if you've ever swapped providers without rewriting a line of code, that's largely their doing. We've learned plenty from them, and for a lot of teams they're still the right answer.
We're not trying to out-catalog them. BitRouter is a bet that the interesting problem has moved: not how many models can you reach, but which one should this particular call go to — and who owns the layer making that call. That's harder to build and slower to prove. It's the thing we want to build.
Where we're genuinely different
You can run the whole thing yourself. BitRouter is Apache 2.0, top to bottom — bitrouter serve and the router lives in your VPC, your CI, your laptop. OpenRouter is a closed-source cloud service: if it's down you're down, and you can't read the code that's choosing your models. Self-hosted, there's no platform fee at all.
We don't take a cut. You pay the upstream provider rate and nothing else — 0% markup on every token. OpenRouter passes inference through too, but bills 5.5% to load credits and 5% on BYOK traffic past their free allowance. Bring your own keys to BitRouter and we charge you nothing for it.
The router learns your workload. Every gateway can pick a model. BitRouter runs an act → observe → evaluate → learn cycle over your actual runs, so routing tightens with every request instead of following a preset someone else tuned. That's the whole product — not a feature bolted onto a catalog.
When OpenRouter is the better call
You want everything. We host roughly 50 models, deliberately — the SOTA tier for agentic and coding work. OpenRouter carries hundreds, including the long tail we don't. You can always bring your own model, local or cloud, and we don't charge for it — where OpenRouter takes a cut of BYOK traffic.
You want free models. OpenRouter has a free tier on some models; we don't. We're focused on making production agent workflows reliable and cheap, and free tiers come with the rate limits and quantization that production loops can't live with.
You need deeper enterprise tooling. OpenRouter has more of it built out today. If there's a requirement we don't meet, talk to us — we'd rather hear the gap than guess at it.
Next steps
How is this guide?
Supported Models
The models hosted BitRouter routes to natively — a curated SOTA set for agentic and coding work, with input, cached-input, and output pricing — plus how to bring your own.
BitRouter vs LiteLLM
LiteLLM is the all-in-one AI gateway with the widest provider coverage in the category. BitRouter is a focused, extensible one built around a loop that learns. An honest side-by-side.