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HTTP 414 URI Too Long

The request URL exceeds the server's length limit.

4xx · Client error✗ not retryable — fix the request instead

In AI APIs specifically

Usually caused by stuffing data into query parameters that belongs in a POST body.

Fix checklist

  • Move data from the query string into the request body.
  • Check for accidentally URL-encoded payloads in the path.

Spec: RFC reference

Related status codes

400 Bad Request

The server cannot process the request due to a client error — malformed JSON, invalid parameters, or schema violations..

401 Unauthorized

Authentication is missing or invalid for this request..

402 Payment Required

The request requires payment — billing is not set up or a balance is exhausted..

403 Forbidden

The server understood the request but refuses to authorize it — valid credentials, insufficient permission..

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