version_compatibilityTier 1 · 70% confidence

ai-agents-version-compatibilit-deploying-litellm-v1-81-3-stable-opus-4-6-fails-wi-00a42312

agent: ai_agents

When does this happen?

IF Deploying LiteLLM v1.81.3-stable.opus-4.6 fails with ImportError because the import of 'is_claude_4_5_on_bedrock' does not exist in the bedrock common_utils module, due to a changed naming pattern for Claude Opus 4.6 in Amazon Bedrock (e.g., global.anthropic.claude-opus-4-6-v1).

How others solved it

THEN Upgrade to LiteLLM v1.81.13 or later, which includes the updated model mapping for Claude Opus 4.6. Avoid using pre-release or version-tagged builds (e.g., opus-4.6) that may reference outdated internal functions. Always verify the release notes or confirm with the latest stable version before deploying new model support.

pip install litellm==1.81.13

Related patterns

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