The term "best" can be subjective and context-dependent when referring to unrestricted AI. Different AI systems excel in different areas, such as natural language processing, image recognition, or data analysis. As of my last update in October 2023, here are a few AI models and frameworks that are considered highly capable and versatile:
1. **OpenAI's GPT Series**: Models like GPT-4 are among the most advanced natural language processing AIs.


