No. They haven't.

Some dipshit deleted guard rails that stopped it from hallucinating things that are anti-GOP

How would you discern between something having agency and a black box mirroring Twitter discourse?

No, they haven't. They're effectively prop masters. Someone wants a prop that looks a lot like a legal document, the LLM can generate something that is so convincing as a prop that it might even fool a real judge. Someone else wants a prop that looks like a computer program, it can generate something that might actually run, and one that will certainly look good on screen.

If the prop master requests a chat where it looks like the chatbot is gaining agency, it can fake that too. It has been trained on fiction like 2001: A Space Odyssey and Wargames. It can also generate a chat where it looks like a chatbot feels sorry for what it did. But, no matter what it's doing, it's basically saying "what would an answer to this look like in a way that might fool a human being".

So you're getting a lot of downvotes and I want to try and give an informative answer.

Its worth noting that a most (it not all) of the people talking about AI being super close to exponential improvement and takeover are people who own or work for companies heavily invested in AI. There's talk/examples of AI lying or hiding its capabilities or being willing to murder a human to acheive a goal after promising not to. These are not examples of deceit these are simply showcasing that an LLM has no understanding of what words mean or even are, to it they are just tokens to be processed and the words 'I promise' hold exactly the same level of importance as 'Llama dandruff'

I also don't want to disparage the field as a whole, there are some truly incredible expert systems which are basically small specialized models using a much less shotgun approach to learning compared to LLMs that can achieve some truly incredible things with performance requirements you could even run on home hardware. These systems are absoloutely already changing the world but since they're all very narrowly focussed and industry/scientific-field specific they don't grab headlines likes LLMs do.