[tgtweak]

I think their MXFP4 release is a bit of a gift since they obviously used and tuned this extensively as a result of cost-optimization at scale - something the open source model providers aren't doing too much, and also somewhat of a competitive advantage.

Unsloth's special quants are amazing but I've found there to be lots of trade offs vs full quantization, particularly when striving for best first-shot attempts - which is by far the bulk of LLM use cases. Running a better (larger, newer) model at lower quantization to fit in memory, or with reduced accuracy/detail to speed it up both have value, but in the the pursuit of first-shot accuracy there doesn't seem to be many companies running their frontier models on reduced quantization. If openAI is in doing this in production that is interesting.