HTTP status
400 invalid_request_error
Typical cause
Every provider capable of serving the requested model was excluded by routing constraints (e.g.,max_cost_per_1m, max_ttft_ms, require_parameters, provider allowlist).
HTTP 400 — All providers excluded by routing constraints.
400 invalid_request_error
max_cost_per_1m, max_ttft_ms, require_parameters, provider allowlist).