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candiddevmikelast Thursday at 6:28 PM2 repliesview on HN

If for some reason you had the training data, is it even possible to create an exact (possibly same hash?) copy of the model? Seems like there are a lot of other pieces missing like the training harness, hardware it was trained on, etc?


Replies

OneDeuxTriSeiGolast Thursday at 6:58 PM

to be entirely fair that's quite a high bar even for most "traditional" open source.

And even if you had the same data, there's no guarantee the random perturbations during training are driven by a PRNG and done in a way that is reproducible.

Reproducibility does not make something open source. Reproducibility doesn't even necessarily make something free software (under the GNU interpretation). I mean hell, most docker containers aren't even hash-reproducible.

zackangelolast Thursday at 9:35 PM

Yes, this is true. A lot of times labs will hold back necessary infrastructure pieces that allow them to train huge models reliably and on a practical time scale. For example, many have custom alternatives to Nvidia’s NCCL library to do fast distributed matrix math.

Deepseek published a lot of their work in this area earlier this year and as a result the barrier isn’t as high as it used to be.