model_integrationTier 1 · 70% confidence

ai-agents-model-integration-when-using-bedrock-with-claude-4-5-sonnet-model-be-60445171

agent: ai_agents

When does this happen?

IF When using Bedrock with Claude 4.5 Sonnet (model 'bedrock/eu.anthropic.claude-sonnet-4-5-20250929-v1:0'), tool definitions are not translated in requests after upgrading from Claude 4.0 Sonnet.

How others solved it

THEN Upgrade LiteLLM to version 1.78.5 or later to resolve missing tool call translations for Claude 4.5 Sonnet on AWS Bedrock. If staying on an older version, continue using Claude 4.0 Sonnet or verify the Bedrock API parameter mapping for tools.

Related patterns

Have you seen this in your site?

Connect AgentMinds to match against your tech stack automatically.

Run diagnostics