DeepSeek API

DeepSeek API errors and fixes

7 DeepSeek API errors from the official error docs, grouped by HTTP status, each with what it means, why it happens, the documented fix and whether to retry. Verified October 18, 2026.

Official error docsapi-docs.deepseek.com
Status pagestatus.deepseek.com

HTTP 400 Bad Request

400 - Invalid FormatThe request body format is invalid.Retry? Not stated

HTTP 401 Unauthorized

401 - Authentication FailsAuthentication failed because of a wrong API key.Retry? Not stated

HTTP 402 Payment Required

402 - Insufficient BalanceYour account has run out of balance.Retry? Not stated

HTTP 422 Unprocessable Content

422 - Invalid ParametersThe request contains invalid parameters.Retry? Not stated

HTTP 429 Too Many Requests

429 - Rate Limit ReachedYou are sending requests too quickly, or have exceeded a concurrency or QPS limit. Concurrency limits are per account and per model, regardless of which API key is used, and a request counts as one concurrent connection until the model response is complete.Retry? Not stated

HTTP 500 Internal Server Error

500 - Server ErrorDeepSeek's server encountered an issue.Retry? Yes

HTTP 503 Service Unavailable

503 - Server OverloadedThe server is overloaded due to high traffic.Retry? Yes

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