They seem to degrade a lot less.

You don't need papers, good quants are usually published with benchmark data, for example: https://huggingface.co/ISTA-DASLab/DeepSeek-V4.1-Flash-1017-... which maintains parity with FP8 even at 2 bit.

Always check the label and if pain persists, see your doctor!

The ISTA accuracy looks good on that page, but it's only a chosen handful. Instead, look at most of the graphs on Unsloth's Qwen 3.8 Flash Next - https://unsloth.ai/docs/models/qwen3.8-next

As always, check the quant vs KLD graphs (half way down that page).. I found that not all quants are the same - Unsloth's GLM Q4 -> Q3 degrades a lot faster than their Minimax M3.1 Q4 -> Q3 ggufs.