• TrollAccount69@lemmy.ml
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    21 hours ago

    It’s because they’re hitting model size constraints. There’s only so much memory bandwidth you can get between racks or even rack spaces and memory bandwidth is the constraint for nearly every ml thing.

    Expect a reversal once a more memory dense component hits.

    • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
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      19 hours ago

      There’s no reason to think that the architecture itself can scale indefinitely. It might very well be that LLMs have some hard constraints on the scope of the problems they’re capable of solving.

      • TrollAccount69@lemmy.ml
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        18 hours ago

        Of course, that’s what I’m saying. Physical constraints of hardware mean there’s a limit to how much further (read: larger in terms of working memory footprint, because that’s how they’re getting “better” and better “frontier” models) development can continue until a more dense component comes along.

        Every singularity a sigmoid.

        • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
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          16 hours ago

          I meant that simply making models bigger might not actually make them more capable. So even if you had unlimited hardware to play with, you might have to find a different approach.

          • TrollAccount69@lemmy.ml
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            12 hours ago

            You could create a way to measure the idea of capability that would bear that out but from a pure discrete mathematics perspective, no, you only get better with a larger memory footprint.

            There’s a lot of ways to make that faster or make that behave like a process running on a bigger memory footprint, but ultimately that’s the constraint.

            And companies competing in the field of ai can’t justify the expense of cutting down their gigantic model to only know how to identify wood because that has a known and limited impact. They already said they’re shooting for unlimited immeasurable impact on the scale of replacing all human labor and got massive funding for it.

            It doesn’t matter if it’s easier to do one backflip, you asked me to triple dog dare you to do a million backflips. Well… we’re waiting!

            • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
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              11 hours ago

              Again, there is no reason to think that you can just keep making the model bigger and keep getting improved capability that way. In fact, we already know that’s not the case because simply making them bigger stopped being the focus. The real breakthrough is going to come from better algorithms.

              • TrollAccount69@lemmy.ml
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                8 hours ago

                You said there’s no reason to think you can just keep making the model bigger and keep getting improved capability.

                there’s the structure of the neural network itself. Fundamentally, adding nodes and layers increases the ability of the model to handle more complex input.

                Then there’s the actual models we see in use. They are literally as large as the hardware allows. The only reason to use smaller models are to fit some constraint.

                So both by the book and in practice bigger is always better.

                Now we can’t always go big. I can’t afford to purchase a dgx or even upgrade my wiring to power it, let alone pay the power bill it would rack up or all the other utilities alone when my wife leaves me because of the sound.

                My computer can only fit so many expansion cards and pcie is so slow compared to hbm that I’m better off running a small model quickly that fits on one card as opposed to a larger one slowly across several cards.

                But those are all constraints. When I replace my motherboard with supermicro gpu host fabric I no longer am limited by the pcie bandwidth and can quickly use models that fit across several cards.

                I do agree with you that the future is smaller models, not because of the fundamental nature of the concepts involved but because of the complex constraints that are coming into play.

                • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
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                  9 minutes ago

                  The problem is with the context and data propagation through the network. As you keep making it bigger it becomes slower and less focused. And there is research showing that smaller models do outperform large ones on some tasks https://cacm.acm.org/news/bigger-not-necessarily-better

                  What I expect we’ll see going forward is more hierarchical architecture where you have finely tuned models for specific tasks with a general routing model on top. This is basically already where MoE architecture is moving now. We might also see stuff like neurosymbolics get more popular where the LLM acts as a stochastic engine within a symbolic logic system. The model can handle noisy input from the real world, and transform it into structured data that a symbolic engine can operate on.

                  Brute forcing the problem is a naive approach and US labs took it because they effectively had unlimited resources to train their models until now.

                  And when more compute becomes available, solutions that are more efficient are going to further benefit from that as well. We see this with DeepSeek right now. They focused on efficiency over capability up front, and now they have a fundamentally cheaper architecture that’s rapidly catching up in capability.