Use OpenRouter for AI models

## Useful Links 
- https://openrouter.ai/deepseek/deepseek-r1-0528:free/api
- https://openrouter.ai/google/gemini-2.0-flash-exp:free/api
- https://openrouter.ai/meta-llama/llama-3.3-70b-instruct:free/api

## Other
- Check Julius AI