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Error code reference
upstream_error
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Error code reference
budget_exhausted
concurrent_requests_exceeded
context_length_exceeded
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HTTP status
Typical cause
Resolution
Error code reference
upstream_error
HTTP 502 — Upstream returned an invalid or unparseable response.
HTTP status
502 api_error
Typical cause
An upstream provider returned a non-success response that couldn’t be translated to a canonical client error.
Resolution
Retry with backoff. Upstream is the source of truth; the failure may clear on its own.
unknown_parameter
upstream_timeout
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