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fix: map Anthropic API usage-limit errors to RateLimitError (429) not BadRequest (400)

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72004 2026-08-21 01:26:59 +05:00
parent e0e3523246
commit 74dc2e782b
2 changed files with 20 additions and 0 deletions
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8
litellm/litellm_core_utils/exception_mapping_utils.py
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@ -78,6 +78,14 @@ class ExceptionCheckers:
if "service tier capacity exceeded" in _error_str_lower:
return True
#######################################
# Anthropic returns spend/usage-limit exhaustion typed as an
# invalid_request_error (HTTP 400), e.g. "You have reached your specified
# API usage limits." It is a usage limit and should map to 429. (#37599)
#######################################
if "api usage limit" in _error_str_lower:
return True
return False
@staticmethod

12
tests/unit/litellm_core_utils/test_exception_mapping_utils.py
View file

@ -206,6 +206,18 @@ class TestExceptionCheckers:
is True
)
def test_anthropic_usage_limit_is_treated_as_rate_limit(self):
"""Anthropic reports spend/usage-limit exhaustion as an invalid_request_error
(HTTP 400), but it is a usage limit and should map to 429, not 400 (#37599).
"""
error_str = (
"litellm.BadRequestError: AnthropicException - "
'{"type":"error","error":{"type":"invalid_request_error",'
'"message":"You have reached your specified API usage limits. '
'You will regain access on 2026-09-01 at 00:00 UTC."}}'
)
assert ExceptionCheckers.is_error_str_rate_limit(error_str, status_code=400) is True
def test_is_azure_content_policy_violation_error_with_policy_violation_text(self):
"""Test detection of Azure content policy violation with explicit policy violation text"""