{
  "@context": "https://schema.org",
  "@type": "Dataset",
  "@id": "https://www.requesty.ai/data/status-code-distribution-october-2026",
  "id": "status-codes-october-2026",
  "slug": "status-code-distribution-october-2026",
  "title": "Provider error code distribution, October 2026",
  "shortTitle": "Status code distribution",
  "topic": "reliability",
  "abstract": "What errors do AI providers return? In October 2026, 429 rate limits made up 66.4% of provider-returned errors on the Requesty gateway. 400 Bad Request was next at 18.5%, and 503 Service Unavailable at 6.3%.",
  "whyItMatters": "Most provider failures are capacity limits, not outages. That is why fallbacks across providers recover most failed requests.",
  "questions": [
    "What is the most common LLM API error?",
    "How often do providers return 429 rate limits?",
    "How common are 5xx errors from AI providers?"
  ],
  "period": "Oct 2026",
  "updated": "2026-11-11",
  "license": "CC BY 4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "caveats": [
    "Errors returned by upstream providers only; router and gateway rejections are excluded."
  ],
  "keyFindings": [
    "429 Too Many Requests: 66.4%.",
    "400 Bad Request: 18.5%.",
    "503 Service Unavailable: 6.3%.",
    "404 Not Found: 4.0%.",
    "402 Payment Required: 1.5%."
  ],
  "columns": [
    {
      "key": "code",
      "label": "Status code",
      "unit": "count"
    },
    {
      "key": "description",
      "label": "Description",
      "unit": "count"
    },
    {
      "key": "bucket",
      "label": "Bucket",
      "unit": "count"
    },
    {
      "key": "pct",
      "label": "% of rejections",
      "unit": "percent"
    }
  ],
  "rows": [
    {
      "code": 429,
      "description": "Too Many Requests",
      "bucket": "auth_quota",
      "pct": 0.6636
    },
    {
      "code": 400,
      "description": "Bad Request",
      "bucket": "client_error",
      "pct": 0.185
    },
    {
      "code": 503,
      "description": "Service Unavailable",
      "bucket": "server_error",
      "pct": 0.0628
    },
    {
      "code": 404,
      "description": "Not Found",
      "bucket": "not_found",
      "pct": 0.0396
    },
    {
      "code": 402,
      "description": "Payment Required",
      "bucket": "auth_quota",
      "pct": 0.0145
    },
    {
      "code": 500,
      "description": "Internal Server",
      "bucket": "server_error",
      "pct": 0.0101
    },
    {
      "code": 504,
      "description": "Gateway Timeout",
      "bucket": "gateway",
      "pct": 0.0074
    },
    {
      "code": 401,
      "description": "Unauthorized",
      "bucket": "auth_quota",
      "pct": 0.0059
    },
    {
      "code": 502,
      "description": "Bad Gateway",
      "bucket": "gateway",
      "pct": 0.0042
    },
    {
      "code": 410,
      "description": "Gone",
      "bucket": "not_found",
      "pct": 0.003
    },
    {
      "code": 422,
      "description": "Unprocessable",
      "bucket": "client_error",
      "pct": 0.0024
    },
    {
      "code": 403,
      "description": "Forbidden",
      "bucket": "auth_quota",
      "pct": 0.0005
    },
    {
      "code": 408,
      "description": "Request Timeout",
      "bucket": "gateway",
      "pct": 0.0004
    },
    {
      "code": 529,
      "description": "Site Overloaded",
      "bucket": "server_error",
      "pct": 0.0003
    }
  ],
  "rowKey": "code",
  "citation": {
    "apa": "Requesty (2026). Provider error code distribution, October 2026. Requesty Data. https://www.requesty.ai/data/status-code-distribution-october-2026",
    "bibtex": "@misc{requesty_status_code_distribution_october_2026,\n  author       = {{Requesty}},\n  title        = {Provider error code distribution, October 2026},\n  year         = {2026},\n  howpublished = {\\url{https://www.requesty.ai/data/status-code-distribution-october-2026}},\n  note         = {Requesty Data}\n}"
  },
  "permalink": "https://www.requesty.ai/data/status-code-distribution-october-2026",
  "downloads": {
    "json": "https://www.requesty.ai/data/status-code-distribution-october-2026/data.json",
    "csv": "https://www.requesty.ai/data/status-code-distribution-october-2026/data.csv",
    "markdown": "https://www.requesty.ai/data/status-code-distribution-october-2026.md"
  },
  "citedIn": [],
  "image": "https://www.requesty.ai/data/status-code-distribution-october-2026/opengraph-image",
  "source": {
    "organization": "Requesty",
    "url": "https://www.requesty.ai"
  }
}