Support use of models from different vendor using google plugin

[Harsh-Mahajan-Copart]

Feature Type

Would make my life easier

Feature Description

Currently, I am self hosting the agent on google kubernetes engine and was using gemini models as the LLM. There is an ongoing issue with gemini-2.5-flash where the model does not generate any response. That pushed me to search for a different model. Vertex AI provides various foundational models like claude, llama etc. But I cannot use directly with google plugin available.
Hence, I am proposing an enhancement that allows us to use various kinds of models available on google directly using the google plugin.

Workarounds / Alternatives

No response

Additional Context

No response

[chenghao-mou]

Google's own client SDK does not support Anthropic models, and they are not prioritizing supporting partner models as well per this comment: googleapis/python-genai#1134 (comment)

You can either use a custom LLM node: example, reference or create a custom plugin using Anthropic's own client.