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Registering as an API user does not connect a GPU to sales. Provider onboarding needs a working service and a separate review.
OpenRouter has two relevant perspectives. Developers gain an interface to models from different suppliers. Inference operators investigate the conditions for becoming a listed provider. The two are related, but registering for the API does not connect GPUs to sales.
This overview uses official information checked on November 1, 2026. We do not claim completed onboarding or treat future requests as assured traffic.
Start with a model and task
OpenRouter documentation describes a common model interface. Choose a task such as chat, documents or tools, then check context, parameters and output format. A common interface reduces integration work without making models interchangeable in quality.
Preserve test requests and answer-acceptance criteria. Changing a model identifier deserves verification like any other material application change.
Distinguish model and provider
Several providers may serve one model. Link observations to the actual route as well as the model name. Availability, capabilities, data restrictions and explicit user rules can affect selection.
For example, an application needs structured output from an allowed executor set. Exclude unsuitable routes first, then compare eligible options through observed measurements. The lowest catalog price is not automatically a suitable route.
Reconcile a small request set
Before broad use, send known requests and save IDs, usage and cost information. Separate input, output and additional applicable components. Do not convert characters into billed tokens using one universal coefficient.
Check funding, BYOK and plan-feature conditions on the pricing page. Separate inference from maintaining the integration in the budget. This helps explain why the invoice differs from an estimate based on one model rate.
Selling inference requires a service
Provider onboarding involves an application and review. The user API is not a way to rent out a card automatically. Working infrastructure, a compatible endpoint and operating conditions come first.
Specific connection possibilities depend on technical assessment and external conditions. Free VRAM and a successful demonstration are useful but do not replace the remaining stages.
Use the overview to decide
A developer can test one scenario and its routing rules.
Read about model versus provider routing and choosing a token-sales channel. Discuss infrastructure through its role in the service chain rather than the platform name alone.