Error: Internal error: {
  "message": "API error (status 402 Payment Required): Grok Build usage balance exhausted",
  "http_status": 402,
  "promptUsage": {
    "inputTokens": 5872681,
    "outputTokens": 26861,
    "totalTokens": 5899542,
    "cachedReadTokens": 5519872,
    "cacheCreationTokens": 0,
    "reasoningTokens": 26044,
    "modelCalls": 30,
    "apiDurationMs": 629418,
    "costUsdTicks": 11444409200,
    "modelUsage": {
      "grok-4.6-build": {
        "inputTokens": 5872681,
        "outputTokens": 26861,
        "totalTokens": 5899542,
        "cachedReadTokens": 5519872,
        "cacheCreationTokens": 0,
        "reasoningTokens": 26044,
        "modelCalls": 30,
        "apiDurationMs": 629418,
        "costUsdTicks": 11444409200
      }
    },
    "numTurns": 30
  }
}