OPENROUTER_KEY is not passed through to the OpenAI client, resulting in 401 error

[cmungall]

The docs state that either "You can set that as an environment variable called OPENROUTER_KEY, or add it to the llm set of saved keys"
https://github.com/simonw/llm-openrouter?tab=readme-ov-file#configuration

However, if the env var path is chosen and llm keys set openrouter is not used this results in

Error: Error code: 401 - {'error': {'message': 'Missing Authentication header or invalid API key', 'code': 401}}

On debugging it seems that the OPENAI_KEY env var takes priority.

Either the docs should state that the keys command must be used, or the env var should be passed through.

[tosh]

I just also ran into this. Worked around it by explicitly passing the API key.