OpenRouter ?

I'm trying to register a new LLM in the system by selecting "OpenAI" as the provider and changing the endpoint to point to OpenRouter.

However, I'm receiving an error stating that only OpenAI's standard models are allowed when using the "OpenAI" provider. This seems to be a limitation enforced by the platform, but in fact, OpenRouter supports a wide range of models via the OpenAI-compatible API.

How can I proceed to register a model like deepseek/deepseek-r1-distill-llama-70b using OpenRouter while still using the OpenAI protocol? I want to leverage OpenRouter for broader model support.

adapter_id: "openai|..."
adapter_metadata:
{model: "deepseek/deepseek-r1-distill-llama-70b", api_base: "https://openrouter.ai/api/v1",…}
adapter_name: "11"
api_base: "https://openrouter.ai/api/v1"

Failed
Error testing '11'. Error from LLM provider 'OpenAI'.
Unknown model 'deepseek/deepseek-r1-distill-llama-70b'. Please provide a valid OpenAI model name in: o1, o1-2024-12-17, o1-pro, o1-pro-2025-03-19, o1-preview
Thanks in advance

Start by tracing the OpenAI provider's model validation and the adapter metadata containing model and api_base. Check how the OpenAI-compatible endpoint is tested, then define completion as allowing the OpenRouter model while preserving the existing OpenAI protocol validation and successful provider testing.