To be fair, LLMs (especially
Google LLMs) aren't merely 24 months old. This is part of a long line of models that draw their heritage from BERT and t5-flan. Google has been at this longer than most,
particularly in the field of edge-compute models. This isn't even close to a first-generation model family.
That's not to say this is an insignificant contribution. New models are great, especially when released for free, and it's important for big firms to keep the ball rolling for tech to progress. Though there is also legitimate concern that all LLMs aren't improving as fast as they used to improve, and we may have hit the proverbial bathtub curve of AI progress.