microsoft / microsoft/BitNet

ggml-model-i2_s.gguf gives magic file error when adding to Ollama

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Dominant language
C++
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Description

I have successfully implemented BitNet but when I am trying to add it to Ollama with "ggml-model-i2_s.gguf" it fails:

ollama create bitnet -f Modelfile
transferring model data 100% 
Error: invalid file magic

I can use the other gguf file "ggml-model-f32.gguf" for this, but first it take long to transfer to Ollama and second, it become very slow, size of 32G.

Is there any remedy for this?

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Research direction

Reproduce the failure with the shown ollama create bitnet -f Modelfile command and ggml-model-i2_s.gguf, then compare it with the working ggml-model-f32.gguf path. Check the model files and Ollama's accepted GGUF format requirements; done means identifying a compatible remedy or documenting that this quantized file is unsupported.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
ai
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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