An inference provider hosts open-weight models on its own hardware and sells access to them. It is a source of models, not a router between sources: you are buying that company’s serving of Llama or Qwen or DeepSeek, usually because it is faster or cheaper than the alternatives, not because it aggregates anything.
What this category is
These are in the catalogue because they are constantly recommended alongside gateways and frequently confused with them. If your workload is one open-weight model at volume, going direct to whoever serves it best will usually beat routing through an aggregator that resells the same capacity with a margin attached.
The limitation is structural rather than a shortcoming. One provider means one failure domain, one price, and no fallback when a model is deprecated or capacity is short. Teams that start here often end up putting a gateway in front later, at which point the inference provider becomes one upstream among several rather than the whole architecture.
Why you cannot compare these prices with the others
You are buying inference, not a routing layer, so there is no gateway fee to compare — the price is the token price on their own hardware. Setting that beside a marketplace percentage compares a cost of goods with a service fee. The comparison that means something is delivered price per million tokens for the specific model you intend to run.
The pricing guide works
through all four charging mechanisms — token markupMarkup: A percentage the gateway adds on top of what the model actually costs. Some charge none at all and make money elsewhere.MarkupA percentage the gateway adds on top of what the model actually costs. Some charge none at all and make money elsewhere., credit feesCredit or top-up fee: A cut taken when you add money to a prepaid balance, typically around 5%. Easy to miss because it is not a markup on tokens — but you pay it on every dollar you load.Credit or top-up feeA cut taken when you add money to a prepaid balance, typically around 5%. Easy to miss because it is not a markup on tokens — but you pay it on every dollar you load., per-seat, and self-hostedSelf-hosted: You run the software on your own infrastructure. No third party sees your traffic, and there is no vendor fee — but you own the uptime, the patching, and the upgrades.Self-hostedYou run the software on your own infrastructure. No third party sees your traffic, and there is no vendor fee — but you own the uptime, the patching, and the upgrades. — with figures computed at four real
workloads, and the cost estimator runs the same
model against your own volumes.
When this is the wrong category
If you need many models from many vendors, or the ability to fail over when one is down, a single inference provider is not the shape of the answer. Put a gateway in front, or start with a marketplace.
Inference provider running open-weight models on its own GPUs, with fine-tuning and dedicated endpoints.
US company
Cost above the model bill
See pricing
Not published in a directly comparable form
Models
110–200
count not published
Guardrails
Best for Teams that want a broad open-weight catalog plus cheap fine-tuning and the option to move to dedicated GPUs on one vendor.
The other four categories
Products are sorted by what they actually are, not by what they are marketed as.
If none of the above is the shape of your problem, one of these probably is.
Is an inference provider the same as an LLM gateway?
No. A gateway routes between sources of models; an inference provider is one of those sources. They are tracked here because they compete for the same budget and appear in the same shortlists, but a product that serves its own hardware and offers no routing between vendors is a different purchase.
Why use an inference provider instead of a marketplace?
Price and speed on a specific model. A marketplace often resells the same underlying capacity with a margin, so going direct removes a layer of cost and a hop of latency. The trade is that you lose failover, unified billing across vendors, and easy access to models the provider does not host.
Can inference providers be used behind a gateway?
Yes, and that is the common mature setup. Most gateways treat these as upstream providers, so you get the direct pricing on the models they serve while keeping routing, fallback and unified logging in front. The provider-count field on each gateway indicates how wide that upstream support goes.