Responses
Use the backend’s Responses-format generation endpoint.
POST
/v1/responsesRequest
Use model, input and max_output_tokens. Background execution is disabled. Storage/retrieval, hosted tools and long-lived response IDs are not promised by the gateway.
{
"model":"darkseek-v4.1",
"input":"Reply with a short greeting.",
"max_output_tokens":128,
"stream":false
}Verification boundary
A tiny Responses request passed on the existing authenticated backend. Account quotas, gateway streaming usage reconciliation and the public Responses path still need end-to-end launch verification. An internal backend probe is not proof of public availability.