This is an experimental 2-bit GGUF quant of MiniMax-M3 which supports MSA via this llama.cpp PR: https://github.com/ggml-org/llama.cpp/pull/24908

I will keep these quants (and any more I create) up until the PR merges and the bigger players update there repos to match, then I will likely replace this repo with IK quants once ik_llama catches up.

These are up to date with the PR as of 7-10-2026.

Models:

IF16/IF32?

I am still running tests on this at the moment, but for now. The indexer tensors within the official MiniMax-M3 release are stored as both FP32 and BF16 tensors. Specifically the projection tensors (index_{q,k}_proj) are what use BF16. There is some conflicting information in the PR about what these values should be quantized too. The main description recommends F32, but an example llama-quantize command further down in the chain just uses F16. (Once I get some proper perp testing done I will update this section with any differences I noted. I will leave both model's up regardless!)

Further testing has revealed that there is likely no real discernible difference between the F16 and F32 versions of the quant. They have identical KLs and both behave the same in my own usage testing. For now I would recommend the use of the UD-IQ2_M_IF16 model, as it is slightly smaller for what is likely no loss in quality.

UD-IQ2_M_IF16/IF32:

These are clones of Unsloth's UD-IQ2_M mix, with FP16 and FP32 indexer tensors respectively. They behave fairly well compared to the original quant from Unsloth and are likely the highest 'quality' 2-bit quant you can get right now until they update their mix once PR #24098 lands or ik_llama implements it's own support and allows for better 2-bit SOTA quant types.

Mean KLD: 0.488235 ยฑ 0.002577

IQ2_M_IF16:

This is a flat automatic IQ2_M quant directly from llama-quantize without any tensor overrides. I just made this one to compare against the UD quant. NOT RECOMENDED FOR ACTUALL USE!

Mean KLD: 0.490047 ยฑ 0.002621

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