You can save an open source + open weights model, which is frozen in time. That’s still very useful for some things but lacks knowledge of current data.

So we’ll end up with a choice of low-performing stale models or high-performing enshittified models which know about more current information.

Doesn't help when the ads are a layer above the model.

Yup. Like Claude 3 Opus.

Really? I thought you could only do that with open source models. Can you teach me how to checkpoint the current version of Claude Code so I can keep it as-is forever?