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BitSharp, Independent Researcher, Rzeszów, Poland (March 2026) Abstract We present Bielik-Q2-Sharp, the first systematic academic evaluation of extreme 2-bit quantization applied to a Polish large language model. Using Bielik-
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Two-bit quantization can nearly match the performance of larger models on Polish language tasks, but beware: some methods that look good on paper fail catastrophically when generating text.