Short answer, no.

But it is OpenAI compatible for the most part or at least what I have seen. BTW if you are curious about my experiment you can look at this Jupyter Notebook: https://github.com/kasir-barati/smart-novel-beatrice/blob/bcb520b3ca73531eb93c650004090865b9f0f7db/local-setup/notebooks/openrouter_qwen_tts_voices.ipynb

I love JN for testing and experimenting LLMs. Let me know your goto tool when testing and checking what is possible.