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    "user_group": "default"
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{
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    "type": "invalid_request_error"
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}

{
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    "message": "Invalid or expired token",
    "type": "authentication_error"
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}

{
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    "code": "insufficient_quota",
    "message": "Insufficient quota. Please top up your account.",
    "type": "insufficient_quota"
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}

{
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    "code": "model_access_denied",
    "message": "Token does not have access to model: kling-v4-flash-text-to-video",
    "type": "invalid_request_error"
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}

{
  "error": {
    "code": "rate_limit_exceeded",
    "message": "Too many requests, please try again later",
    "type": "rate_limit_error"
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}

{
  "error": {
    "code": "internal_error",
    "message": "Internal server error",
    "type": "api_error"
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}