I think you are probably referring to the following paper: https://arxiv.org/abs/2410.05229
I am impressed by the progress on LLMs but I remain skeptical that they can replace humans.
Perhaps some (distant!) future model but I don’t fear mass unemployment (for example) or even moderate LLM-driven unemployment in the near-to-medium term.
They can clearly complement human labor but there are vanishingly few domains where they can be substitutes.