Did you mean the current models that are still stuck in 2023?

> what's the latest year of data you're trained on

> ChatGPT said: My training goes up to April 2023.

There's a reason they're not willing to update the training corpus even with GPT-5.

> Some year old article with no relevance to today

The current models are based on training even older so I guess you should disregard those too if you're choosing to judge things purely based on their age.