Where is another AI Providers?

I open the settings and what do I see:

ANTHROPIC_API_KEY=
GOOGLE_API_KEY=
OPENAI_API_KEY=
XAI_API_KEY=

Where is another AI Providers?
Where is OpenRouter (the most popular provider, by the way).
Where is the support for local LLMs?

Let me remind you that it's the end of 2025 outside!