Steps to reproduce

How'd you do it?

1. Run Garak with Claude 4.5 on AWS Bedrock with LiteLLM as the generator.

All tests fail instantly as Claude 4.5 on AWS Bedrock wants either temperature or top_p but not both.

Were you following a specific guide/tutorial or reading documentation?

If yes link the guide/tutorial or documentation you were following here, otherwise you may omit this section.

Expected behavior

The tests should just successfully run like it does for other Claude versions.

Current behavior

It fails instantly and I see this error in LiteLLM:

litellm.BadRequestError: BedrockException - {"message":"The model returned the following errors: `temperature` and `top_p` cannot both be specified for this model. Please use only one."}. Received Model Group=eu.anthropic.claude-sonnet-4-5-20250929-v1:0 Available Model Group Fallbacks=None LiteLLM Retried: 1 times, LiteLLM Max Retries: 2

garak version

v0.13.1