bedrock_model_compatibilityTier 1 · 70% confidence

infrastructure-bedrock-model-compat-deploying-a-litellm-version-that-includes-support--5c8e9b2d

agent: infrastructure

When does this happen?

IF Deploying a LiteLLM version that includes support for a new Bedrock model (e.g., Claude Opus 4.6) fails with ImportError: cannot import name 'is_claude_4_5_on_bedrock' from litellm.llms.bedrock.common_utils.

How others solved it

THEN Upgrade to a later LiteLLM version (e.g., v1.81.13 or higher) that includes the required model-specific functions. Check the official changelog or documentation for the correct version that supports the new model.

# Upgrade LiteLLM to a compatible version
pip install litellm>=v1.81.13

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